Film printed product structure with reflection imaging element
By using a reflective imaging element thin film printing structure, combined with color printing technology and reflective imaging principles, the problem of existing thin film products being unable to display color three-dimensional graphics at thin thicknesses has been solved, achieving clear presentation and enhanced brightness of color 3D graphics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-10
AI Technical Summary
Existing 3D graphic thin film products have difficulty displaying color 3D graphics at relatively thin thicknesses. They can display color when the thickness is above 200μm, but cannot display color when the thickness is below 200μm.
The reflective imaging element thin film printed structure includes a thin film substrate, a reflective imaging structure layer, a metal reflective layer, and a printed graphic layer. By using the reflective imaging principle and the moiré fringe effect induced by periodic ring bands, combined with color printing technology, the visual presentation of color 3D graphics is achieved.
It achieves clear rendering of color 3D graphics and text with a relatively thin thickness, reduces material costs, and improves image brightness and color saturation, meeting the durability requirements of commercial printed materials.
Smart Images
Figure CN224109672U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to printing technical field, especially a kind of thin film printing structure with reflective imaging element. BACKGROUND
[0002] The existing thin film product with stereoscopic graphics is usually made of thin film with grating column mirror or lens array; if color three-dimensional graphics is to be made, its thickness is usually above 200 μm, and its thickness is thick, so its use is limited; if three-dimensional graphics with thickness below 200 μm is to be made, color cannot be represented.
[0003] Therefore, the utility model aims to provide a new technical solution to solve the existing technical problems. UTILITY MODEL CONTENT
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a thin film printing structure with reflective imaging element, which solves the problem that the existing three-dimensional graphics thin film product cannot simultaneously consider thin thickness and color three-dimensional graphics information.
[0005] The utility model solves the technical problems by adopting the following technical solutions:
[0006] A thin film printing structure with reflective imaging element comprises:
[0007] A thin film substrate has a first surface and a second surface arranged opposite to the first surface;
[0008] A reflective imaging structure layer is formed on the first surface of the thin film substrate, and the reflective imaging structure layer comprises a plurality of arrayed reflective imaging elements, and the focal length of the reflective imaging element is equal to the thickness of the thin film substrate;
[0009] A metal reflective layer is covered on the first surface of the thin film substrate, and the reflective imaging structure layer is located between the metal reflective layer and the thin film substrate;
[0010] A printed graphics layer is arranged on the second surface of the thin film substrate, and the graphics information of the printed graphics layer forms a corresponding imaging relationship with the periodic arrangement structure of the reflective imaging structure layer.
[0011] In the above structure, the thickness of the metal reflective layer is 300-800 angstroms.
[0012] In the above structure, the array structure of the reflective imaging element is a square structure or a pin-shaped structure.
[0013] In the above structure, the material of the metal reflective layer is aluminum or silver.
[0014] In the above structure, the reflective imaging element is a Fresnel lens structure.
[0015] In the above structure, the reflective imaging element is a mirror structure.
[0016] In the above structure, the thickness of the film substrate ranges from 10 to 50 microns.
[0017] In the above structure, the second surface of the film substrate is further provided with a transparent protective layer, and the printed graphic layer is located between the transparent protective layer and the film substrate.
[0018] In the above structure, the printed graphic layer is a color graphic layer.
[0019] The beneficial effects of the present application are: the present application combines color printing process with reflective imaging element, produces visual depth of field effect through the principle of reflection imaging and / or periodic ring band induced moire fringe effect; at the same time, through the cooperation of the film substrate and the focal length of the reflective imaging element, the imaging structure can clearly present color 3D graphic under the condition of thin thickness. BRIEF DESCRIPTION OF DRAWINGS
[0020] The present application will be further described below in combination with the drawings and examples.
[0021] Fig. 1 is a structural split schematic diagram of the present application;
[0022] Fig. 2 is a side structure schematic diagram of the present application;
[0023] Fig. 3 is a graphic 3D imaging effect schematic diagram of the present application.
[0024] Reference signs: 1, film substrate; 2, reflective imaging structure layer; 21, reflective imaging element; 3, metal reflective layer; 4, printed graphic layer. DETAILED DESCRIPTION
[0025] The present application will be further described below in combination with the drawings and examples. Figs. 1-3 The present application will be further described below in combination with the drawings and examples.
[0026] The concept, specific structure and generated technical effects of the present application will be clearly and completely described below in combination with the embodiments and drawings, so as to fully understand the purposes, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. In addition, all the coupling / connection relations involved in the patent do not mean that the components are directly connected, but means that a better coupling structure can be formed by adding or reducing coupling auxiliary components according to the specific implementation situation. The various technical features in the present application can be interactively combined without mutual contradiction and conflict.
[0027] Embodiment one
[0028] With reference to Figs. 1 to 3 The present application provides a thin film print structure with reflective imaging elements 21, which is applied to 3D graphic printing, combines color printing process and reflective imaging elements 21 together, produces a visual depth of field effect through lens imaging principle, and makes graphic information present 3D effect. The thin film print structure with reflective imaging elements 21 includes, from top to bottom, a printed graphic layer 4, a thin film substrate 1, a reflective imaging structure layer 2 and a metal reflective layer 3. The thin film substrate 1 has a first surface and a second surface, and is the base of the whole structure. The reflective imaging structure layer 2 is formed on the first surface of the thin film substrate 1, and includes a plurality of arrayed reflective imaging elements 21. The metal reflective layer 3 covers the first surface of the thin film substrate 1, and the reflective imaging structure layer 2 is located between the metal reflective layer 3 and the thin film substrate 1. The printed graphic layer 4 is arranged on the second surface of the thin film substrate 1, that is, the printed graphic layer 4 and the reflective imaging structure layer 2 are located on the opposite two surfaces of the thin film substrate 1, and the pattern of the printed graphic layer 4 and the periodic arrangement structure of the reflective imaging structure layer 2 form a corresponding imaging relationship. The reflective imaging structure layer 2 and the printed graphic layer 4 interact to produce one or more stereoscopic graphic information. The present application takes the graphic content as an example of the number "99" for illustration.
[0029] With reference to Fig. 1 and Fig. 2, the printed image layer 4 and the reflective imaging structure layer 2 are respectively located on two sides of the film substrate 1, and the printed image layer 4, the film substrate 1 and the reflective imaging structure layer 2 are sequentially stacked and distributed. Specifically, according to the image to be printed, the reflective imaging structure layer 2 with the corresponding reflective imaging element 21 is designed, the electronic file for printing is prepared, the designed reflective imaging structure layer 2 is engraved by a photoetching machine, a metal mold with the photoetched imaging structure for transfer is obtained by electroforming, and the reflective imaging structure layer 2 on the metal mold is transferred to the first surface of the film substrate 1 by hot pressing or UV pressing. The printed image layer 4 is printed by a printing process and then plated on the second surface of the film substrate 1 by an evaporation process.
[0030] Further, the thickness of the film substrate 1 is equal to the focal length of the reflective imaging element 21. The focal length of the reflective imaging element 21 determines the physical position of light focusing. When the thickness of the film substrate 1 is equal to the focal length of the reflective imaging element 21, the focal point of the reflective imaging structure layer 2 (such as a Fresnel lens) is located on the surface of the printed image layer 4 (i.e. the second surface of the film substrate 1). At this time, the light reflected by the metal reflective layer 3 is accurately focused on the printed image layer 4, thereby significantly improving the clarity and sharpness of the image, reducing the blurring phenomenon caused by light scattering, and the image imaging effect is as shown in Fig. 3 .
[0031] In the embodiment, the reflective imaging element 21 is a mirror structure. The reflective imaging structure layer 2 is arranged as an array of mirror structures, and the thickness of the entire imaging structure is effectively reduced by light path folding, thereby breaking through the thickness limitation of traditional transmission type 3D film.
[0032] Further, the thickness of the metal reflective layer 3 is 300-800 angstrom meters, i.e. 30-80 nanometers. The metal reflective layer 3 is arranged to reflect light, so that the printed image layer is brighter.
[0033] Further, the material of the metal reflective layer 3 is aluminum or silver, preferably aluminum. The price of aluminum material is much lower than that of silver material, which can significantly reduce the material cost of large-scale production. The average reflectivity of aluminum to visible light can reach 85%-95%, which can effectively reflect the color light of the printed image and ensure the brightness and color saturation of the 3D image. The aluminum reflective layer can maintain the reflection performance for more than 10 years under normal environment (non-extreme acid and alkali conditions), which meets the durability requirements of commercial printed products (such as packaging and labels). In addition, the melting point of aluminum is relatively low, and the energy required for evaporation is low, which can efficiently form a film on PET, PC and other heat-sensitive film substrates 1, thereby avoiding the thermal deformation of the substrate.
[0034] In one embodiment, the array structure of the reflective imaging element 21 is a square structure or a triangular structure.
[0035] In the embodiment, the printed graphic layer 4 is a color graphic layer.
[0036] In an embodiment, the thickness of the film substrate 1 layer is in the range of 10-50 μm.
[0037] Controlling the thickness of the film substrate 1 layer in the range of 10-50 μm effectively reduces the thickness of the entire structure and enables the combination of a color graphic printing layer to present a color 3D graphic and obtain an ultra-thin color 3D graphic printing product.
[0038] In an embodiment, the second surface of the film substrate 1 layer is further provided with a transparent protective layer, and the printed graphic layer 4 is located between the transparent protective layer and the film substrate 1 layer. Direct exposure of the printed graphic layer 4 to the outside is prone to color loss or damage due to friction or environmental influences such as oxidation and moisture, and the provision of the transparent protective layer does not affect the visual three-dimensional effect of the graphic, and effectively protects the printed graphic layer 4.
[0039] Example Two
[0040] Example Two differs from Example One in that the reflective imaging element 21 is a Fresnel lens structure, and the light path structure compression is achieved through the structural characteristics (Fresnel zone) of the Fresnel lens, which can also effectively reduce the thickness of the entire imaging structure and realize the presentation of an ultra-thin color 3D graphic.
[0041] In addition, the two-dimensional zone structure of the Fresnel lens can be accurately replicated to a metal mold through a photo-etching and electroforming process, and then transferred to the surface of the film through UV imprinting, which can realize high-precision imprinting and is conducive to the production of related products, thereby reducing the production process difficulty and cost.
[0042] The process flow of the technical solution includes the following steps:
[0043] Step 1: Design the reflective imaging structure layer 2 according to the thickness of the film substrate 1 and the required graphic information;
[0044] Step 2: Use a photoetching machine to engrave the reflective imaging structure layer 2, and then obtain a transferable metal mold with the reflective imaging structure layer 2 through electroforming;
[0045] Step 3: Transfer the reflective imaging structure layer 2 on the metal mold to the first surface of the film substrate 1 through hot pressing or UV imprinting;
[0046] Step 4: Evaporate a metal reflective layer 3 on the side of the film substrate 1 with the reflective imaging structure layer 2 through vacuum coating;
[0047] Step 5: Print a printed graphic layer 4 with graphic information on the second surface of the film substrate 1;
[0048] Step 6: cutting according to the needs of color graphics products, to get the product with three-dimensional graphics printing products.
[0049] The above is a preferred embodiment of the present application is specifically described, but the present application is not limited to the embodiments, those skilled in the art without departing from the spirit of the present application can also make a variety of equivalent modifications or substitutions, these equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.
Claims
1. A reflective imaging element film print structure, comprising: The application relates to a reflective imaging film, which comprises: a film substrate with a first surface and a second surface arranged oppositely; a reflective imaging structure layer formed on the first surface of the film substrate, wherein the reflective imaging structure layer comprises a plurality of arrayed reflective imaging units, and the focal length of the reflective imaging units is equal to the thickness of the film substrate; a metal reflective layer covering the first surface of the film substrate, wherein the reflective imaging structure layer is arranged between the metal reflective layer and the film substrate; and a printed image layer arranged on the second surface of the film substrate, wherein the image information of the printed image layer forms a corresponding imaging relationship with the periodic arrangement structure of the reflective imaging structure layer, and the printed image layer is a color image layer.
2. A thin film print structure with reflective imaging elements according to claim 1, wherein: The thickness of the metal reflective layer is 300-800 angstrom.
3. A thin film print structure with reflective imaging elements according to claim 1, wherein: The array structure of the reflective imaging units is a square structure or a triangular structure.
4. A thin film print structure with reflective imaging elements according to claim 1, wherein: The material of the metal reflective layer is aluminum or silver.
5. A thin film print structure with reflective imaging elements according to claim 1, wherein: The reflective imaging units are Fresnel lens structures.
6. A thin film print structure with reflective imaging elements according to claim 1, wherein: The reflective imaging units are mirror structures.
7. A thin film print structure with reflective imaging elements according to claim 1, wherein: The thickness of the film substrate ranges from 10 to 50 microns.
8. A thin film print structure with reflective imaging elements according to claim 1, wherein: The second surface of the film substrate is further provided with a transparent protective layer, and the printed image layer is arranged between the transparent protective layer and the film substrate.