Gold stamping film with 3D suspension image-text

Abstract

The gilding film comprises a base film layer, a color layer, an electroplated layer and a hot melt adhesive layer which are sequentially arranged from top to bottom, the thickness of the color layer ranges from 5 micrometers to 10 micrometers, a mould pressing image-text area is arranged on the lower end face of the color layer through the mould pressing technology, the maximum mould pressing depth of the mould pressing image-text area is larger than or equal to 5 micrometers, and the thickness of the hot melt adhesive layer ranges from 5 micrometers to 10 micrometers. The thickness of the color layer is set to be 5-10 [mu] m, so that the mold pressing depth of the mold pressing image-text area can reach 5 [mu] m, the mold pressing image-text depth is large, the suspension and 3D effects can be achieved after the mold pressing image-text is covered with the electroplated layer, the imitation difficulty is large, and the good anti-fake effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of hot stamping films, in particular to a hot stamping film with 3D suspended graphics and texts. Background Art

[0002] With the continuous improvement of science and technology, new processes for surface decoration are emerging one after another. Compared with traditional thermal transfer films, which can achieve multi-color transfer, hot stamping films are widely used in the packaging field. Hot stamping films are colorful and dynamic, and have a certain degree of anti-counterfeiting strength. The back of the hot stamping film is provided with a back adhesive layer that is bonded to the object. When the back adhesive layer is bonded and fixed to the object, the film layer on the front of the hot stamping film is peeled off to reveal the imaging layer with the anti-counterfeiting pattern.

[0003] However, traditional hot stamping films generally only have flat graphic effects, or multi-angle laser effects, and cannot achieve the 3D floating effect of composite paper cards or composite films, resulting in the anti-counterfeiting pattern being too simple and easy to imitate, making it difficult to distinguish the authenticity of the product. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a hot stamping film with 3D suspended graphics, which achieves the effect of 3D suspended graphics and has a good anti-counterfeiting effect.

[0005] According to the first aspect of the embodiment of the utility model, the hot stamping film with 3D suspended graphics includes a base film layer, a color layer, an electroplating layer and a hot melt adhesive layer arranged in sequence from top to bottom, wherein the thickness of the color layer is 5μm to 10μm, and the lower end surface of the color layer is provided with a molded graphics area through a molding process, and the maximum molding depth of the molded graphics area is greater than or equal to 5μm.

[0006] The hot stamping film with 3D suspended graphics according to the embodiment of the utility model has at least the following beneficial effects: by setting the thickness of the color layer to 5μm to 10μm, the embossing depth of the embossed graphics area can reach 5μm, so that the depth of the embossed graphics is relatively large, and after being covered with the electroplating layer, a suspension and 3D stereoscopic effect can be achieved, which is difficult to imitate and has a good anti-counterfeiting effect.

[0007] According to some embodiments of the present invention, the electroplating layer is an aluminum plating layer, a copper plating layer or a zinc sulfide plating layer.

[0008] According to some embodiments of the present invention, the corona value of the base film layer is less than 58 dynes and greater than 42 dynes.

[0009] According to some embodiments of the present invention, the base film layer has a thickness of 12 μm to 50 μm.

[0010] According to some embodiments of the present invention, the base film layer is a PET film or a PP film.

[0011] According to some embodiments of the present invention, the hot melt adhesive layer is a modified polyester and polyurethane resin adhesive layer with a thickness of 0.5 μm to 1.5 μm.

[0012] According to some embodiments of the present invention, the color layer is a mixed layer of modified acrylic resin and color powder.

[0013] According to some embodiments of the present invention, a micro-graphic engraving area is provided on the lower end surface of the color layer.

[0014] According to some embodiments of the present invention, the graphics and texts in the micro-graphic engraving area are a combination of one or more of relief, cat's eye or light column.

[0015] According to some embodiments of the present invention, the graphics and texts in the micro-graphic engraving area are arranged on the lower end surface of the color layer by means of intaglio engraving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a structural schematic diagram of a hot stamping film with 3D suspended graphics and texts in the first specific embodiment of the utility model;

[0018] Figure 2 This is a production process flow chart with 3D floating graphics and texts for the first specific embodiment of the utility model;

[0019] Figure 3 This is a structural schematic diagram of a hot stamping film with 3D floating graphics and texts according to a second specific embodiment of the utility model;

[0020] Figure 4 This is a production process flow chart with 3D floating graphics and text according to the second specific embodiment of the utility model.

[0021] Reference numerals:

[0022] Base film layer 100 , micro-graphic engraving area 210 , color layer 200 , electroplating layer 300 , hot melt adhesive layer 400 . DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference below Figures 1 to 4 The present invention describes a hot stamping film with 3D suspended graphics and text according to an embodiment of the present invention.

[0028] like Figure 1 , Figure 3 As shown, the hot stamping film with 3D suspended graphics according to the embodiment of the utility model includes a base film layer 100, a color layer 200, an electroplating layer 300 and a hot melt adhesive layer 400 arranged in sequence from top to bottom, wherein the color layer 200 has a thickness of 5μm to 10μm, and the lower end surface of the color layer 200 is provided with a molded graphics area through a molding process, and the maximum molding depth of the molded graphics area is greater than or equal to 5μm.

[0029] By setting the thickness of the color layer 200 to 5μm to 10μm, the embossing depth of the embossed image area can reach 5μm, making the embossed image depth greater. After being covered by the electroplating layer 300, it can achieve a suspension and 3D stereoscopic effect, which is difficult to imitate and has a good anti-counterfeiting effect.

[0030] Specifically, in the present invention, no release layer is provided between the base film layer 100 and the color layer 200, and the release function is formed by utilizing the adhesion effect between the upper end surface of the color layer 200 and the base film layer 100, so that the base film layer 100 can be directly peeled off during hot stamping.

[0031] In some embodiments of the present invention, the embossed graphic area is obtained by embossing the color layer 200 with a plate roller covering the 3D suspension working plate, the embossing temperature is 190-200° C., the roller pressure is 0.3-0.4 MPa, and the vehicle speed is 40-60 m / min.

[0032] In some embodiments of the present invention, the thickness of the color layer 200 is set to 5 μm, 7 μm, 8 μm, or 10 μm, so that the molding depth of the molded graphic area can reach 5 μm, which can achieve better suspension and 3D stereoscopic display effects.

[0033] It should be noted that, although the greater the molding depth of the molded graphic area, the better the suspension and 3D stereoscopic display effects, the greater the molding depth, the thicker the color layer 200. The color layer 200 is generally a mixed layer of transparent resin and color powder, which has a certain light transmittance and can better display the suspension and 3D stereoscopic display effects of the molded graphics. However, if the thickness of the color layer 200 is too large, it will also affect the light transmittance of the color layer 200, which will affect the suspension and 3D stereoscopic display effects of the molded graphics. In the present utility model, the thickness of the color layer 200 is set to 5μm to 10μm, which can ensure that the molded graphic area has sufficient molding depth to achieve suspension and 3D stereoscopic display effects, and at the same time make the color layer 200 have better perspective, which can clearly display the suspension and 3D stereoscopic display effects.

[0034] In some embodiments of the present invention, the corona value of the base film layer 100 is less than 58 dynes and greater than 42 dynes, so that the base film layer 100 and the color layer 200 have a certain degree of adhesion, so that the base film layer 100 can be easily detached when the hot stamping film is used.

[0035] Specifically, the corona value of the base film layer 100 is generally not greater than 58 dynes to reduce the difficulty of corona treatment and peeling.

[0036] In some embodiments of the present invention, the electroplating layer 300 is an aluminum-plated layer, so that the molded graphics and texts display silver-white suspension and 3D stereoscopic effects.

[0037] It is conceivable that in some embodiments of the present invention, the electroplating layer 300 may also be a zinc sulfide plating layer, a silver plating layer, a copper plating layer, etc., to achieve different color rendering effects.

[0038] In some embodiments of the present invention, the thickness of the electroplating layer 300 is 0.03-0.05 μm. The electroplating layer can protect the molded 3D suspension pattern and enhance the reflection effect of the 3D suspension.

[0039] Specifically, the electroplating layer 300 is attached to the lower end surface of the color layer 200 and changes with the molded graphic area.

[0040] In some embodiments of the present invention, the thickness of the base film layer 100 is 12 μm to 50 μm, which can provide a good load-bearing and supporting effect and can have a good protective effect on the color layer 200 .

[0041] Specifically, when the thickness of the base film layer 100 is 12 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, or 50 μm, better load-bearing support and protection effects can be achieved.

[0042] In some embodiments of the present invention, the base film layer 100 is a PET film or a PP film.

[0043] It is conceivable that in some embodiments of the present invention, the base film layer 100 is a single film layer or a composite film layer.

[0044] It is conceivable that in some embodiments of the present invention, the base film layer 100 may also be a PVC base film, a PET+PE combined base film, or the like.

[0045] In some embodiments of the present invention, the color layer 200 is a mixed layer of modified acrylic resin and color powder, so as to achieve a coloring effect.

[0046] Specifically, the color of the toner can be set according to different display effects; in addition, the color layer 200 can also be formed by mixing other transparent resins and toner.

[0047] In some embodiments of the present invention, the color layer 200 is disposed on the lower end surface of the base film layer 100 through a coating process, and the color layer 200 is formed after being cured or semi-cured.

[0048] In some embodiments of the present invention, the hot melt adhesive layer 400 is a modified polyester and polyurethane resin adhesive layer, which can be bonded to the product or packaging box after heating.

[0049] Specifically, the hot melt adhesive layer can be a modified polyester and polyurethane resin adhesive layer, a modified acrylic resin adhesive layer, or an acrylic resin and polyurethane resin adhesive layer, and can be adjusted according to different objects to be ironed.

[0050] In some embodiments of the present invention, the thickness of the hot melt adhesive layer 400 is 0.5 μm to 1.5 μm, so that the thickness of the hot stamping film after hot stamping is small and a good adhesion effect is guaranteed.

[0051] like Figure 3 As shown, in some embodiments of the utility model, a micro-image engraving area 210 is provided on the lower end surface of the color layer 200, and the micro-image engraving area 210 is provided in an intaglio or relief manner. When the electroplating layer 300 is provided, the electroplating layer 300 is immersed in the micro-image engraving area 210 to form a relief effect with a metallic luster at the micro-image engraving area 210 to serve as an anti-counterfeiting mark.

[0052] In some embodiments of the present invention, the maximum depth of the micro-graphic engraving area 210 is less than the maximum embossing depth of the embossed graphic area.

[0053] Specifically, since the micro-graphic engraving area 210 is located at the lower end surface of the color layer 200, and the maximum depth of the micro-graphic engraving area 210 is less than the maximum embossing depth of the embossed graphic area, the color layer 200 is thicker in the micro-graphic engraving area 210, which can better protect the micro-graphic engraving area 210, forming a specific mark that is not easily destroyed, maintaining a good anti-counterfeiting effect, and at the same time increasing the anti-counterfeiting means of the hot stamping film.

[0054] In some embodiments of the present invention, the graphics of the micro-graphic engraving area 210 are a combination of one or more of relief, cat's eye or light column to achieve a specific marking effect.

[0055] In some embodiments of the present invention, the graphics of the micro-graphic engraving area 210 are set on the lower end surface of the color layer 200 by engraving, and the electroplating layer 300 is immersed in the micro-graphic engraving area 210 to form a relief effect, which has a better marking effect.

[0056] Specifically, in the present invention, since the thickness of the color layer 200 is set to 5μm to 10μm, the molding depth of the molded image area can reach 5μm. After the electroplating layer 300 is set, the molded image forms a suspended and 3D stereoscopic effect with a metallic texture at the lower end and inside of the color layer 200, while the micro-image engraving area 210 forms a suspended relief effect with translucent (color layer 200 color display) at the lower end of the color layer 200, and at the same time has a certain three-dimensional sense and a good marking effect. However, due to the large depth of the molded image area, it is very easy to be distorted and affect the effect after long-term use. At this time, the micro-image engraving area 210 can play an auxiliary marking effect.

[0057] In some embodiments of the present invention, the micro-graphic engraving area 210 is disposed on the lower end surface of the color layer 200 by molding.

[0058] It can be understood that in some embodiments of the present invention, the graphics of the micro-graphic engraving area 210 are set on the lower end surface of the color layer 200 by means of positive engraving, which will not be described in detail here.

[0059] In some embodiments of the utility model, the micro-image engraving area 210 and the molded image can be formed by molding, and the special photosensitive material for molded laser holography is: photoresist. After the material is exposed to laser holography, it can be processed to obtain a relief phase hologram, that is, a master for making a molded hologram. The surface of the master is full of uneven interference fringes, and its density can reach more than one thousand per millimeter. A certain thickness of metal nickel is electroplated on the surface of the master to make a metal master that can be used for batch replication (printing). The metal master replicates the interference fringes on the holographic master. The metal master is installed on the molding machine, the molded holographic film material (PET, BOPP, etc.) is heated, and the metal master is pressed on the film material with a certain pressure, and the relief hologram on the metal master is embossed on the molded holographic film material.

[0060] In order to better understand the above technical solution, the above technical solution will be described in detail below in combination with specific implementation methods.

[0061] Embodiment 1

[0062] like Figure 1 As shown, the hot stamping film with 3D suspended graphics includes a base film layer 100, a color layer 200, an electroplating layer 300 and a hot melt adhesive layer 400 arranged in sequence from top to bottom, wherein the thickness of the color layer 200 is 8±0.1μm, and the lower end surface of the color layer 200 is provided with a molded graphics area through a molding process, the maximum molding depth of the molded graphics area is greater than or equal to 5±0.1μm, and the electroplating layer 300 is an aluminum-plated layer, and finally a suspension and 3D stereoscopic display effect with metallic luster can be formed, which has high recognition and is difficult to imitate.

[0063] like Figure 2 As shown, the hot stamping film with 3D suspended graphics in the first embodiment is made by the following process:

[0064] S1, corona treatment, performing corona treatment on the base film layer 100 so that the corona value of the base film layer 100 reaches 52 dynes or more;

[0065] S2, coating the color layer, coating the color layer 200 on the lower end surface of the base film layer 100 by a coating device, and forming the color layer 200 after curing;

[0066] S3, molding, the plate roller coated with the 3D suspension working plate is pressed onto the printing color layer 200 to form a molded image and text area, the molding temperature is 195±1°C, the pressing roller pressure is 0.35±0.01Mpa, and the vehicle speed is 50±2m / min;

[0067] S4, aluminum plating, forming an electroplating layer 300 on the lower end surface of the color layer 200 by vacuum aluminum plating;

[0068] S5 , applying hot melt adhesive, applying a hot melt adhesive layer 400 below the electroplating layer 300 .

[0069] It can produce a hot stamping film with 3D suspended images and texts, which has the effects of suspension and 3D stereoscopic display and good anti-counterfeiting effect.

[0070] Example

[0071] like Figure 3 As shown, the hot stamping film with 3D suspended graphics includes a base film layer 100, a color layer 200, an electroplating layer 300 and a hot melt adhesive layer 400 arranged in sequence from top to bottom, wherein the thickness of the color layer 200 is 8±0.1μm, and the lower end face of the color layer 200 is provided with a molded graphics area through a molding process, the maximum molding depth of the molded graphics area is greater than or equal to 5±0.1μm, the electroplating layer 300 is an aluminum-plated layer, and the lower end face of the color layer 200 is provided with a micro-graphic engraving area 210, finally, a suspension and 3D stereoscopic display effect with metallic luster can be formed, which has high recognition and is difficult to imitate, and at the same time, the micro-graphic engraving area 210 can form a semi-transparent (color layer 200 is colored) suspended relief effect, and at the same time has a certain three-dimensional sense, further increasing the anti-counterfeiting effect.

[0072] like Figure 4 As shown, the hot stamping film with 3D suspended graphics in the first embodiment is made by the following process:

[0073] S1, corona treatment, performing corona treatment on the base film layer 100 so that the corona value of the base film layer 100 reaches 52 dynes or more;

[0074] S2, coating the color layer, coating the color layer 200 on the lower end surface of the base film layer 100 by a coating device, and forming the color layer 200 after curing;

[0075] S3, embossing the image and text area, pressing the plate roller coated with the 3D suspension working plate onto the color layer 200 to form an embossed image and text area, the molding temperature is 195±1°C, the roller pressure is 0.35±0.01Mpa, and the vehicle speed is 50±2m / min;

[0076] S4, molding micro-graphic engraving area, engraving the micro-graphic engraving area 210 on the lower end surface of the color layer 200 by molding

[0077] S5, aluminum plating, forming an electroplating layer 300 on the lower end surface of the color layer 200 by vacuum aluminum plating;

[0078] S6 , applying hot melt adhesive, applying a hot melt adhesive layer 400 below the electroplating layer 300 .

[0079] A hot stamping film with 3D suspended graphics can be made, which has suspension and 3D stereoscopic display effects and good anti-counterfeiting effect. The micro-graphic engraving area 210 can form a semi-transparent (color layer 200 displays color) suspended relief effect and has a certain three-dimensional sense, further increasing the anti-counterfeiting effect.

[0080] Of course, the invention of the present invention is not limited to the above-mentioned implementation modes. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A hot stamping film with 3D suspended graphics, characterized in that: include: Basement membrane layer (100); A color layer (200) is disposed below the base film layer (100), the color layer (200) has a thickness of 5 μm to 10 μm, and a molded image area is disposed on the lower end surface of the color layer (200), and the maximum molded depth of the molded image area is greater than or equal to 5 μm; An electroplating layer (300) is disposed below the color layer (200); The hot melt adhesive layer (400) is disposed below the electroplating layer (300).

2. The hot stamping film with 3D suspended graphics according to claim 1, characterized in that: The electroplating layer (300) is an aluminum plating layer, a copper plating layer or a zinc sulfide plating layer.

3. The hot stamping film with 3D suspended graphics according to claim 1, characterized in that: The corona value of the base film layer (100) is less than 58 dynes and greater than 42 dynes.

4. The hot stamping film with 3D suspended graphics according to claim 1, characterized in that: The base film layer (100) has a thickness of 12 μm to 50 μm.

5. The hot stamping film with 3D suspended graphics according to claim 1, characterized in that: The base film layer (100) is a PET film or a PP film.

6. The hot stamping film with 3D suspended graphics according to claim 1, characterized in that: The hot melt adhesive layer (400) is a modified polyester and polyurethane resin adhesive layer with a thickness of 0.5 μm to 1.5 μm.

7. The hot stamping film with 3D suspended graphics according to claim 1, characterized in that: The color layer (200) is a mixed layer of modified acrylic resin and color powder.

8. The hot stamping film with 3D suspended graphics according to claim 1, characterized in that: The lower end surface of the color layer (200) is provided with a micro-image engraving area (210).

9. The hot stamping film with 3D suspended graphics according to claim 8, characterized in that: The graphics and texts in the micro-graphic engraving area (210) are a combination of one or more of relief, cat's eye or light column.

10. The hot stamping film with 3D suspended graphics according to claim 8, characterized in that: The graphics and texts of the micro-graphic engraving area (210) are arranged on the lower end surface of the color layer (200) by means of intaglio engraving.

Images