Local holographic positioning hot stamping film

Abstract

The utility model discloses a local holographic positioning hot stamping film, which comprises a base film layer, a release layer, a color layer, a functional layer and a back adhesive layer in sequence from top to bottom, the functional layer comprises an aluminized layer and a printing layer, the lower end face of the color layer is provided with a mould pressing pattern and a positioning cursor pattern through mould pressing, and the aluminized layer corresponds to the mould pressing pattern and the positioning cursor pattern. The printing layer is positioned and printed on the lower end face of the color layer through a positioning cursor pattern, the printing layer is provided with a variable information pattern deviating from the area of the mould pressing pattern and the positioning cursor pattern, the mould pressing pattern is matched with the aluminum plating layer to form a holographic anti-fake pattern, and the variable information pattern is an anti-fake information pattern. The hot stamping film realizes the combination of the holographic anti-counterfeiting pattern and the anti-counterfeiting information pattern, is high in imitation difficulty, and has a better anti-counterfeiting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of hot stamping films, in particular to a local holographic positioning hot stamping film. 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] At present, the anti-counterfeiting patterns of commonly used hot stamping films are 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 provides a local holographic positioning hot stamping film.

[0005] The utility model also provides a method for preparing the local holographic positioning hot stamping film.

[0006] According to the partial holographic positioning hot stamping film of the first aspect embodiment of the utility model, it includes, from top to bottom: a base film layer, a release layer, a color layer, a functional layer, and an adhesive layer, wherein the functional layer includes an aluminum coating layer and a printing layer, and the lower end surface of the color layer is provided with an embossing pattern and a positioning cursor pattern by molding, the aluminum coating layer corresponds to the embossing pattern and the positioning cursor pattern, the printing layer is positioned and printed on the lower end surface of the color layer by the positioning cursor pattern, and the printing layer is provided with a variable information pattern in an area deviating from the embossing pattern and the positioning cursor pattern.

[0007] The partial holographic positioning hot stamping film according to the embodiment of the utility model has at least the following beneficial effects: when in use, the hot stamping film is adhered to the product or packaging box by using the adhesive layer, and the base film layer can be peeled off to hot stamp the color layer, the aluminum-plated layer, and the printing layer onto the product or packaging box. The molded pattern cooperates with the aluminum-plated layer to form a holographic anti-counterfeiting pattern, and the variable information pattern is an anti-counterfeiting information pattern. The hot stamping film realizes a combination of the holographic anti-counterfeiting pattern and the anti-counterfeiting information pattern, which is difficult to imitate and has a good anti-counterfeiting effect.

[0008] According to some embodiments of the present invention, the variable information pattern is at least one of a two-dimensional code, a bar code, a digital code or a micro-dot code.

[0009] According to some embodiments of the present invention, the base film layer has a thickness of 12 to 25 μm and a corona value of 40 to 44 dynes.

[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 back adhesive layer is a hot melt adhesive layer.

[0012] According to some embodiments of the present utility model, the hot melt adhesive layer is a modified polyester and polyurethane resin adhesive layer with a thickness of 0.8 to 1.5 μm.

[0013] According to some embodiments of the present invention, the release layer is a water wax layer with a thickness of 0.05 to 0.2 μm.

[0014] According to some embodiments of the present invention, the color layer is a mixed layer of modified acrylic resin and color powder, and has a thickness of 0.5 to 2.0 μm.

[0015] According to the second aspect of the present invention, the method for preparing the partial holographic positioning hot stamping film comprises the following steps:

[0016] S1, sequentially coating the release layer and the color layer on the lower end surface of the base film layer;

[0017] S2, forming a molded pattern and a positioning cursor pattern on the lower end surface of the color layer by a mold pressing device;

[0018] S3, printing aluminum wash ink on the lower end surface of the color layer avoiding the molded pattern and the positioning cursor pattern to form an aluminum wash ink printing area;

[0019] S4, aluminum plating is performed on the lower end surface of the color layer;

[0020] S5, washing aluminum on the lower end surface of the color layer, removing the aluminum layer plated on the aluminum-washing ink printing area, retaining the aluminum layer plated on the embossed pattern and the positioning cursor pattern, and forming an aluminum-plated layer corresponding to the embossed pattern and the positioning cursor pattern;

[0021] S6, positioning by the positioning cursor pattern, printing a printing layer on the lower end surface of the color layer, the printing layer having a variable information pattern deviating from the embossed pattern and the region of the positioning cursor pattern;

[0022] S7, coating a back adhesive layer below the printing layer and the aluminum-plated layer.

[0023] According to the preparation method of the partial holographic positioning hot stamping film of the embodiment of the utility model, it has at least the following beneficial effects: the molded pattern cooperates with the aluminum-plated layer to form a holographic anti-counterfeiting pattern, the variable information pattern is the anti-counterfeiting information pattern, the hot stamping film realizes the combination of the holographic anti-counterfeiting pattern and the anti-counterfeiting information pattern, it is difficult to imitate, and has a good anti-counterfeiting effect.

[0024] According to some embodiments of the present invention, the aluminum washing ink is a water-soluble aluminum washing ink, and aluminum is washed with water in step S5. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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:

[0026] Figure 1 This is a schematic structural diagram of a partial holographic positioning hot stamping film according to an embodiment of the utility model;

[0027] Figure 2 This is a process flow chart of the partial holographic positioning hot stamping film according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] Base film layer 100 , release layer 200 , color layer 300 , aluminum plating layer 400 , printing layer 500 , variable information pattern 510 , adhesive layer 600 . DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Reference below Figure 1 to Figure 2 The local holographic positioning hot stamping film according to the embodiment of the utility model is described.

[0035] like Figure 1 As shown, the partial holographic positioning hot stamping film according to the embodiment of the utility model includes, from top to bottom: a base film layer 100, a release layer 200, a color layer 300, a functional layer, and a back adhesive layer 600, wherein the functional layer includes an aluminum plating layer 400 and a printing layer 500, and the lower end surface of the color layer 300 is provided with an embossing pattern and a positioning cursor pattern by molding, the aluminum plating layer 400 corresponds to the embossing pattern and the positioning cursor pattern, the printing layer 500 is printed on the lower end surface of the color layer 300 by positioning the positioning cursor pattern, and the printing layer 500 is provided with a variable information pattern 510 in an area deviating from the embossing pattern and the positioning cursor pattern.

[0036] When in use, the hot stamping film is adhered to the product or packaging box using the adhesive layer 600, and the base film layer 100 is peeled off, and the color layer 300, the aluminum-plated layer 400, and the printing layer 500 can be hot stamped onto the product or packaging box. The molded pattern and the aluminum-plated layer 400 can form a holographic anti-counterfeiting pattern. The variable information pattern 510 is an anti-counterfeiting information pattern. The hot stamping film realizes a combination of a holographic anti-counterfeiting pattern and an anti-counterfeiting information pattern, which is difficult to imitate and has a good anti-counterfeiting effect.

[0037] Specifically, the embossed pattern cooperates with the aluminum-plated layer 400 to form a holographic pattern with a metallic and three-dimensional feel, and cooperates with the color layer 300 to have rich colors and is difficult to imitate; the variable information pattern 510, the printing layer 500 and the color layer 300 can realize multi-color hot stamping transfer, achieve a multi-level pattern effect, and have a better anti-counterfeiting identification effect.

[0038] In some embodiments of the present invention, the printing device prints the printing layer 500 and the variable information pattern 510 after positioning the cursor pattern, so that the position accuracy of the printing layer 500 and the variable information pattern 510 is high, and the interference with the holographic pattern is reduced.

[0039] Specifically, the positioning cursor pattern can be a specific identification pattern, or a partial pattern of the embossed pattern. The positioning cursor pattern is located at a specific position of the hot stamping film. Digital printing equipment and the like have an identification module that can identify the positioning cursor pattern, such as a video recognition module or a laser positioning module, so that the printing equipment can accurately locate the printing position of the printing layer 500 and the variable information pattern 510, thereby improving the printing accuracy.

[0040] In some embodiments of the utility model, when the hot stamping film is used for hot stamping, a positioning cursor pattern can be used for positioning, so as to achieve positioning hot stamping and improve the hot stamping position accuracy of the hot stamping film.

[0041] In some embodiments of the present invention, the printing layer 500 is printed at a position of the color layer 300 that is not covered by the aluminum-plated layer 400, thereby forming a misalignment to avoid interference.

[0042] It can be understood that in some embodiments of the present invention, the printing layer 500 can be fully printed below the color layer 300 and the aluminum-plated layer 400, that is, the printing layer 500 covers the aluminum-plated layer 400, and the variable information pattern 510 is set at the position covered by the aluminum-plated layer 400 to achieve the effect of the anti-counterfeiting mark.

[0043] In some embodiments of the present invention, a molding pattern and a positioning cursor pattern are formed by molding on the color layer 300 through a molding machine.

[0044] Specifically, during molding, molding oil, molding agent or silicone oil may be pre-coated on the lower surface of the color layer 300 before molding, or molding may be performed directly on the lower surface of the color layer 300. During molding, the entire hot stamping film may be molded, or local molding may be performed on the area where the molded pattern and the positioning cursor pattern are located.

[0045] In some embodiments of the present invention, the variable information pattern 510 records product information or specific anti-counterfeiting information, which may be at least one of a QR code, a bar code, a digital code, or a micro-dot code.

[0046] In some embodiments of the present invention, the base film layer 100 is a PET film or a PP film.

[0047] 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.

[0048] 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.

[0049] In some embodiments of the present invention, the thickness of the base film layer 100 is 12-25 μm to maintain a good bearing effect on the hot stamping film.

[0050] In some embodiments of the present invention, the corona value of the base film layer 100 is 40-44 dynes, so that it can maintain a good adhesion effect with the release layer 200.

[0051] Specifically, when the corona value of the base film layer 100 is 40 to 44 dynes, the release layer 200 has a better adhesion effect with the base film layer 100. When the hot stamping film is used, when the base film layer 100 is peeled off, the adhesion effect between the release layer 200 and the base film layer 100 is maintained as much as possible, so that the release layer 200 is peeled off along with the base film layer 100, so that less release layer 200 remains on the hot stamping film, thereby achieving a better marking effect.

[0052] In some embodiments of the present invention, the release layer 200 is a water wax layer, which has a good release effect.

[0053] It is conceivable that in some embodiments of the present invention, the release layer 200 is a montan wax layer, which can also achieve a better release effect.

[0054] In some embodiments of the present invention, the thickness of the release layer 200 is 0.05-0.2 μm, so that the thickness of the hot stamping film after hot stamping is small.

[0055] In some embodiments of the present invention, the color layer 300 is a mixed layer of modified acrylic resin and color powder, so as to achieve a coloring effect.

[0056] Specifically, the color of the toner can be set as needed, such as being set to be different from the color of the aluminum plating layer 400, the printing layer 500, and the variable information pattern 510, so that the color is richer.

[0057] In some embodiments of the present invention, the thickness of the color layer 300 is 0.5-2.0 μm, so that the thickness of the hot stamping film after hot stamping is relatively small.

[0058] In some embodiments of the present invention, the back adhesive layer 600 is a hot melt adhesive layer, which can be bonded to the product or packaging box after heating.

[0059] 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.

[0060] In some embodiments of the present invention, the thickness of the adhesive layer 600 is 0.8-1.5 μm, so that the thickness of the hot stamping film after hot stamping is relatively small.

[0061] In some embodiments of the present invention, the thickness of the color layer 300, the functional layer, and the adhesive layer 600 is 2 to 4 μm, that is, the thickness of the hot stamping film remaining on the object after hot stamping is 2 to 4 μm. This thickness setting can meet the ultra-thin requirement of the hot stamping film, so that the integrity and edge neatness of the hot stamping film after hot stamping are better.

[0062] Reference Figure 2 According to the second aspect of the present invention, the method for preparing the local holographic positioning hot stamping film comprises the following steps:

[0063] S1, sequentially coating a release layer 200 and a color layer 300 on the lower end surface of the base film layer 100;

[0064] S2, using a molding device to mold a molding pattern and a positioning cursor pattern on the lower end surface of the color layer 300;

[0065] S3, printing washed aluminum ink on the lower end surface of the color layer 300 avoiding the molded pattern and the positioning cursor pattern to form a washed aluminum ink printing area;

[0066] S4, aluminum plating is performed on the lower end surface of the color layer 300;

[0067] S5, washing aluminum on the lower end surface of the color layer 300 with a solvent, removing the aluminum layer plated on the aluminum washing ink printing area, retaining the aluminum layer plated on the molded pattern and the positioning cursor pattern, and forming an aluminum-plated layer 400 corresponding to the molded pattern and the positioning cursor pattern;

[0068] S6, printing a printing layer 500 on the lower end surface of the color layer 300 by positioning the positioning cursor pattern, wherein the printing layer 500 has a variable information pattern 510 in an area deviating from the embossing pattern and the positioning cursor pattern;

[0069] S7 , coating a back adhesive layer 600 below the printing layer 500 and the aluminum plating layer 400 .

[0070] Through the above process, a hot stamping film that is not used for hot stamping can be formed. When in use, the hot stamping film is adhered to the product or packaging box using the adhesive layer 600, and the base film layer 100 is peeled off, and the color layer 300, the aluminum-plated layer 400, and the printing layer 500 can be hot stamped onto the product or packaging box. The molded pattern and the aluminum-plated layer 400 can form a holographic anti-counterfeiting pattern, and the variable information pattern 510 is an anti-counterfeiting information pattern. The hot stamping film realizes a combination of a holographic anti-counterfeiting pattern and an anti-counterfeiting information pattern, which is difficult to imitate and has a good anti-counterfeiting effect.

[0071] Specifically, in the above process, the aluminum layer in the area covered by the aluminum-washing ink, i.e., the aluminum layer on the aluminum-washing ink printing area, can be washed away during the aluminum washing process in step S5, and the aluminum layer plated on the molded pattern and the positioning cursor pattern is retained, thereby forming an aluminum-plated layer 400 corresponding to the molded pattern and the positioning cursor pattern, forming a holographic pattern.

[0072] In some embodiments of the present invention, the aluminum washing ink is a water-soluble aluminum washing ink, and water is used as a solvent to wash the aluminum in step S5.

[0073] Specifically, the components of the aluminum-washing ink are 25±5% high molecular polymer, 40±5% ethanol, and 35±5% water.

[0074] It is conceivable that in some embodiments of the present invention, ethanol or a mixture of ethanol and water is used as a solvent to wash aluminum in step S5.

[0075] In some embodiments of the present invention, in step S1 , the release layer 200 and the color layer 300 are coated on the lower end surface of the base film layer 100 by a continuous coating process.

[0076] Specifically, in step S1, a printing and coating integrated machine is used, and a 300 mesh + 180 mesh screen roller is used to coat the release layer 200 and the color layer 300 respectively, and then dried in a horizontal oven, and the coating efficiency and qualified rate are both high.

[0077] In some embodiments of the present invention, in step S4, the lower end surface of the color layer 300 is aluminum-plated by a vacuum aluminum plating process.

[0078] 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.

[0079] Embodiment 1

[0080] The hot stamping film is produced through the following processes:

[0081] S1. Coating a release layer 200 and a color layer 300 on the lower end surface of the base film layer 100 in sequence, wherein the base film layer 100 has a thickness of 20±1 μm, a corona value of 42±0.5 dyne, a release layer 200 has a thickness of 0.1±0.01 μm, and a color layer 300 has a thickness of 1.5±0.1 μm;

[0082] S2, using a molding device to mold a molding pattern and a positioning cursor pattern on the lower end surface of the color layer 300, wherein the positioning cursor pattern is a part of the molding pattern;

[0083] S3, printing water-based aluminum-washing ink on the lower end surface of the color layer 300, avoiding the molded pattern and the positioning cursor pattern, to form an aluminum-washing ink printing area;

[0084] S4, using a vacuum aluminum plating process to aluminum-plated the lower end surface of the color layer 300;

[0085] S5, washing aluminum on the lower end surface of the color layer 300 with water, removing the aluminum layer plated on the aluminum washing ink printing area, retaining the aluminum layer plated on the molded pattern and the positioning cursor pattern, and forming an aluminum-plated layer 400 corresponding to the molded pattern and the positioning cursor pattern;

[0086] S6. Printing a printing layer 500 on the lower end surface of the color layer 300 by positioning the positioning cursor pattern. The printing layer 500 has a variable information pattern 510 in an area deviating from the embossing pattern and the positioning cursor pattern. The variable information pattern 510 is a two-dimensional code.

[0087] S7 . Coat the adhesive layer 600 below the printed layer 500 and the aluminum-plated layer 400 . The thickness of the adhesive layer 600 is 1±0.1 μm.

[0088] Through the above process, a hot stamping film combining a QR code and a holographic pattern can be obtained, which has rich colors, high recognition, and good anti-counterfeiting effect. When the hot stamping film is hot stamped onto an object, the thickness of the hot stamping film is 2.8±0.2μm, the edge is clear, the surface of the hot stamping film has less than 200% residual release layer, and the touch is normal.

[0089] Embodiment 2

[0090] The hot stamping film is produced through the following processes:

[0091] S1. Coating a release layer 200 and a color layer 300 on the lower end surface of the base film layer 100 in sequence, wherein the base film layer 100 has a thickness of 15±1 μm, a corona value of 41±0.5 dyne, a release layer 200 has a thickness of 0.18±0.01 μm, and a color layer 300 has a thickness of 1.9±0.1 μm;

[0092] S2, using a molding device to mold a molding pattern and a positioning cursor pattern on the lower end surface of the color layer 300, wherein the positioning cursor pattern is a part of the molding pattern;

[0093] S3, printing water-based aluminum-washing ink on the lower end surface of the color layer 300, avoiding the molded pattern and the positioning cursor pattern, to form an aluminum-washing ink printing area;

[0094] S4, using a vacuum aluminum plating process to aluminum-plated the lower end surface of the color layer 300;

[0095] S5, washing aluminum on the lower end surface of the color layer 300 with water, removing the aluminum layer plated on the aluminum washing ink printing area, retaining the aluminum layer plated on the molded pattern and the positioning cursor pattern, and forming an aluminum-plated layer 400 corresponding to the molded pattern and the positioning cursor pattern;

[0096] S6. Printing a printing layer 500 on the lower end surface of the color layer 300 by positioning the positioning cursor pattern. The printing layer 500 has a variable information pattern 510 in an area deviating from the embossing pattern and the positioning cursor pattern. The variable information pattern 510 is a bar code.

[0097] S7 . Coat the adhesive layer 600 below the printed layer 500 and the aluminum-plated layer 400 . The thickness of the adhesive layer 600 is 1.4±0.1 μm.

[0098] Through the above process, a hot stamping film combining a barcode and a holographic pattern can be obtained, which has rich colors, high recognition, and good anti-counterfeiting effect. When the hot stamping film is hot stamped onto an object, the thickness of the hot stamping film is 3.6±0.2μm, the edge is clear, the surface of the hot stamping film has less than 200% residual release layer, and the touch is normal.

[0099] 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 local holographic positioning hot stamping film, characterized in that: include: Basement membrane layer (100); A release layer (200), the release layer (200) being disposed below the base film layer (100); A color layer (300), the color layer (300) being arranged below the release layer (200), and a molded pattern and a positioning cursor pattern being arranged on the lower end surface of the color layer (300) by molding; an aluminum plating layer (400), the aluminum plating layer (400) being arranged on the lower end surface of the color layer (300) and corresponding to the molded pattern and the positioning cursor pattern; A printing layer (500), the printing layer (500) being printed on the lower end surface of the color layer (300) by positioning the positioning cursor pattern, the printing layer (500) being provided with a variable information pattern (510) in an area deviating from the embossing pattern and the positioning cursor pattern; A back adhesive layer (600), the back adhesive layer (600) is arranged below the printing layer (500) and the aluminum plating layer (400).

2. The partial holographic positioning hot stamping film according to claim 1, characterized in that: The base film layer (100) has a thickness of 12 to 25 μm and a corona value of 40 to 44 dynes.

3. The partial holographic positioning hot stamping film according to claim 1, characterized in that: The base film layer (100) is a PET film or a PP film.

4. The partial holographic positioning hot stamping film according to claim 1, characterized in that: The back adhesive layer (600) is a hot melt adhesive layer.

5. The partial holographic positioning hot stamping film according to claim 1, characterized in that: The release layer (200) is a water wax layer with a thickness of 0.05 to 0.2 μm.

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