Double-sided hidden holographic image-text film structure and anti-counterfeit label

Abstract

The utility model discloses a double-sided hidden holographic image-text film structure and an anti-counterfeit label, the film structure comprises a base film layer, a UV curing holographic layer and a plastic filling layer which are laminated from top to bottom, the UV curing holographic layer is provided with a first pattern, the first pattern forms a nanoscale sawtooth groove on the UV curing holographic layer, and the first pattern is provided with a second pattern. The sawtooth grooves are completely filled with the plastic filling layer, a plane interface is formed, a second pattern is formed on the side, facing the first pattern, of the plastic filling layer, the first pattern and the second pattern can be separated, and after separation, the surfaces of the first pattern and the second pattern are not sticky. The display device is in a transparent state when not uncovered, the first pattern and the second pattern can be completely seen after the display device is uncovered, and the display device has the advantages of attractiveness and concealment.

Description

TECHNICAL FIELD

[0001] The utility model relates to anti -fake film technical field especially a double -faced hidden hologram text film structure and anti -fake label. BACKGROUND

[0002] With the continuous progress of modern anti -fake technology, the fake and inferior technology is also constantly updated, and many label anti -fake technologies are easily imitated, once imitated, will bring unpredictable loss to the enterprise. Therefore, brand merchants in packaging design, not only in the text on the combination of product characteristics to innovate, also hope that the label can realize excellent anti -fake effect.

[0003] The anti -fake label made by holographic printing technology is the most commonly used anti -fake means when adhering to the commodity, the existing thin film with hologram text, namely the common double -layer label, the surface layer of this double -layer label is often opaque, needs to tear the surface adhesive layer to see the hidden information of the next layer, sticks this label on the pasted object, will form partial covering to the pasted object, may affect the appearance of the pasted object.

[0004] Therefore, the utility model aims at providing a new technical scheme to solve the existing technical problems. UTILITY MODEL CONTENT

[0005] In order to overcome the deficiency of prior art, the utility model provides a double -sided hidden hologram text film structure and anti -fake label, solves the problem that the existing anti -fake label is pasted on the pasted object and causes shielding and covering.

[0006] The technical scheme adopted by the utility model to solve its technical problems is:

[0007] A double -sided hidden hologram text film structure, including from top to bottom layer -by -layer setting base film layer, UV solidification holographic layer and plastic filling layer, first pattern is arranged on the UV solidification holographic layer, the first pattern forms nanometer scale sawtooth groove on the UV solidification holographic layer, the plastic filling layer is completely filled in the sawtooth groove and forms a plane interface, the plastic filling layer forms second pattern towards the first pattern side, the first pattern and the second pattern are separable, and the first pattern and the second pattern surface are not adhesive after separation.

[0008] In the above structure, the size of the sawtooth groove is between 300nm and 800nm.

[0009] In the above structure, the text information of the first pattern and the second pattern is mirror image arrangement.

[0010] In the above structure, the plastic filling layer is formed by coating EVA material on the UV solidification holographic layer.

[0011] In the above structure, the plastic filling layer is provided with an adhesive layer on the side opposite to the UV curing holographic layer.

[0012] In the above structure, a substrate is further included, and the side of the adhesive layer opposite to the plastic filling layer is adhered to the substrate.

[0013] In the above structure, the plastic filling layer is uniformly coated on the UV curing holographic layer and the first pattern surface by coating.

[0014] In the above structure, the first pattern and the second pattern are holographic texts.

[0015] In the above structure, the base film layer is made of PET material.

[0016] The utility model further provides:

[0017] A security label comprising the double-sided hidden holographic text film structure as described above.

[0018] The double-sided hidden holographic text film structure of the utility model has the advantages that the UV curing holographic layer and the plastic filling layer are cooperated, the plastic filling layer can fill the sawtooth groove formed by the first pattern and form the second pattern, the text information is in a transparent hidden state in the unopened state, and the text information can be seen on the upper and lower sides after being opened, the transparency of the film is reserved while the double-sided hidden text information is realized. The security label made of the film structure has concealment, is beautiful, and has a wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described below in combination with the drawings and examples.

[0020] Figure 1 is the overall structure schematic view of the film structure of the utility model;

[0021] Figure 2 is the schematic view of the first composite structure layer tearing off the second composite structure layer of the utility model;

[0022] Figure 3 is the effect schematic view of the security label of the utility model.

[0023] Reference signs: 1, base film layer; 2, UV curing holographic layer; 21, first pattern; 102, first composite structure layer; 3, plastic filling layer; 31, second pattern; 30, second composite structure layer; 4, adhesive layer. DETAILED DESCRIPTION

[0024] The utility model will be further described below in combination with the drawings and examples. Figures 1-3 The utility model will be further described below in combination with the drawings and examples.

[0025] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments, and other embodiments obtained by those skilled in the art without creative labor based on the embodiments of the present application all belong to the scope of protection of the present application. In addition, all the coupling / connection relationships involved in the patent do not mean that the components are directly connected, but means that a better coupling structure can be composed by adding or reducing coupling accessories according to the specific implementation situation. The various technical features in the present application can be interactively combined without mutual contradiction and conflict.

[0026] With reference to Figure 1 and Figure 2 The present application provides a double-sided hidden holographic graphic film structure which can be applied to the field of anti-fake labels, has a fully transparent appearance, and does not block the attached object when attached to the attached object. It comprises a base film layer 1, a UV cured holographic layer 2 and a plastic filling layer 3 arranged from top to bottom, wherein the base film layer 1 is the base body of the entire film structure, the UV cured holographic layer 2 has a first pattern 21 thereon, the first pattern 21 forms a nano-scale sawtooth groove on the UV cured holographic layer 2, and the plastic filling layer 3 is completely filled in the sawtooth groove and forms a flat structure. The plastic filling layer 3 is formed with a second pattern 31 on the side facing the first pattern 21, the first pattern 21 and the second pattern 31 are separable, and the surfaces of the first pattern 21 and the second pattern 31 are free of adhesion after separation. The first pattern 21 is transferred by UV imprinting, specifically, a master plate with graphic information of the first pattern 21 is used to transfer the first pattern 21 to the base film layer 1 by UV imprinting, so that a nano-scale sawtooth groove is formed microscopically.

[0027] Further, the size of the sawtooth groove formed by the first pattern 21 is between 300nm and 800nm.

[0028] The first pattern 21 and the second pattern 31 can be separated, that is, the base film layer 1, the UV curing holographic layer 2 and the first pattern 21 form a first composite structure layer 102, the second pattern 31 and the plastic filling layer 3 form a second composite structure layer 30, when the object to be pasted is uncovered, the first composite structure layer 102 and the second composite structure layer are attached together, at this time, the overall structure presents a transparent state, when in use, the first pattern 21 and the second pattern 31 are peeled off from the second composite structure layer 30, and the first pattern 21 and the second pattern 31 are displayed, and the human eye can observe the graphic information of the upper and lower two layers. The first pattern 21 and the second pattern 31 after phase separation have no adhesion on the surface, so that after the first pattern 21 and the second pattern 31 are peeled off once to verify the authenticity, the first composite structure layer 102 and the second composite structure layer 30 cannot be attached again to restore the initial state, preventing reuse after being peeled off, and effectively guaranteeing the anti-fake performance of the label.

[0029] With reference to Figure 1 and Figure 3 The hiding principle of the first pattern 21 and the second pattern 31 is that the first pattern 21 forms a sawtooth groove on the UV curing holographic layer 2, and a specific optical effect can be formed through the diffraction effect of light, and the human eye can perceive the first pattern 21. After the sawtooth groove microstructure on the UV curing holographic layer 2 is filled and flattened by the plastic filling layer 3, the incident light no longer experiences significant refractive index mutation at the sawtooth groove interface, the diffraction effect is inhibited, and the human eye cannot perceive the first pattern 21, and the film structure presents a transparent state, thereby realizing the effect of hiding graphic information. When the sawtooth groove formed by the first pattern 21 is filled, the first pattern 21 is transferred on the plastic filling layer 3, thereby forming the second pattern 31 which is complementary to the first pattern 21. When the first composite structure layer 102 and the second composite structure layer 30 are separated, the sawtooth groove of the first pattern 21 and the sawtooth groove transferred on the second pattern 31 are displayed, and the human eye can perceive the first pattern 21 and the second pattern 31, thereby achieving the effect that the two sides display graphic information after being uncovered, and realizing the purpose of covert anti-fake.

[0030] The graphic information of the first pattern 21 and the second pattern 31 is mirror image arranged. After the first composite structure layer 102 and the second composite structure layer 30 are separated, the complete first pattern 21 and the second pattern 31 are displayed. It should be noted that the graphic information on the first pattern 21 and the second pattern 31 can be set as required. Compared with the double-sided graphic effect formed by tearing and destroying the metal reflection layer in the prior art, the first pattern 21 and the second pattern 31 of the technical scheme are independent of each other and will not damage the respective structure layers after being uncovered, a more rich anti-fake label can be made, the application range is wider, and the effect is more beautiful.

[0031] Further, the first pattern 21 and the second pattern 31 are set as holographic texts. The holographic texts are used as a carrier of text information, and the surface of the holographic texts has a sawtooth groove structure. The sawtooth groove structure is matched with the plastic filling layer 3 to realize transparent effect in the filling state and display holographic text effect in the peeling state, so that the pasted object has the advantages of concealment, easy verification, beauty and low cost.

[0032] In an embodiment, the plastic filling layer 3 is formed by coating EVA material (i.e. ethylene-vinyl acetate copolymer material) on the UV-cured holographic layer 2; and the base film layer 1 is made of PET material. The refractive index of the EVA material (n≈1.48) and the commonly used base material such as PET (n≈1.57) can form an interface with low refractive index difference, which can effectively weaken the Bragg diffraction efficiency of the sawtooth groove section and effectively ensure the hiding of the text information. Moreover, the EVA material has good rheological properties, and the melt viscosity can realize good filling of the nanoscale sawtooth groove; and the EVA material can realize continuous production by hot melt coating, and the production cost is low.

[0033] Further, the plastic filling layer 3 is provided with an adhesive layer 4 on the side away from the UV-cured holographic layer 2, and the double-sided hidden holographic text film structure can be attached to each pasted object by the adhesive layer 4. Preferably, the adhesive layer 4 can be made of pressure-sensitive adhesive.

[0034] Further, a substrate (not shown in the figure) after release treatment is further included, and the side of the adhesive layer 4 away from the plastic filling layer 3 is attached to the substrate. After tearing the substrate, the double-sided hidden holographic text film structure can be attached to the pasted object, and the anti-fake text information is fixed on the pasted object.

[0035] The utility model also provides:

[0036] An anti-fake label comprising the double-sided hidden holographic text film structure as described above.

[0037] The above is a specific description of the preferred implementation of the utility model, but the utility model creation is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A double-sided, covert holographic graphic sheet film structure, characterized by: The film structure comprises a base film layer, a UV-cured holographic layer and a plastic filling layer stacked from top to bottom, the UV-cured holographic layer is provided with a first pattern, the first pattern forms nanoscale sawtooth grooves on the UV-cured holographic layer, the plastic filling layer completely fills the sawtooth grooves and forms a flat interface, the plastic filling layer is provided with a second pattern on the side facing the first pattern, the first pattern and the second pattern are separable, and the first pattern and the second pattern surface are not sticky after separation.

2. A double-sided, hidden hologram note film structure according to claim 1, characterized in that: The size of the sawtooth groove is between 300 nm and 800 nm.

3. A double-sided covert hologram note film structure according to claim 1, characterized in that: The graphic information of the first pattern and the second pattern is mirror image arranged.

4. A double-sided, hidden hologram note film structure according to claim 1, characterized in that: The plastic filling layer is formed by coating EVA material on the UV-cured holographic layer.

5. A double-sided, hidden hologram note film structure according to claim 1, characterized in that: The side of the plastic filling layer away from the UV-cured holographic layer is provided with an adhesive layer.

6. A double-sided, hidden hologram note film structure according to claim 5, characterized in that: A release-treated substrate is further included, and the side of the adhesive layer away from the plastic filling layer is adhered to the substrate.

7. A double-sided concealed hologram note film structure according to claim 1, characterized in that: The plastic filling layer is uniformly coated on the surface of the UV-cured holographic layer and the first pattern by coating.

8. A double-sided, hidden hologram note film structure according to claim 1, characterized in that: The first pattern and the second pattern are holographic graphics.

9. A double-sided concealed hologram note film structure according to claim 1, characterized in that: The base film layer is made of PET material.

10. A security tag, characterized by: The film structure comprises a base film layer, a UV-cured holographic layer and a plastic filling layer stacked from top to bottom, the UV-cured holographic layer is provided with a first pattern, the first pattern forms nanoscale sawtooth grooves on the UV-cured holographic layer, the plastic filling layer completely fills the sawtooth grooves and forms a flat interface, the plastic filling layer is provided with a second pattern on the side facing the first pattern, the first pattern and the second pattern are separable, and the first pattern and the second pattern surface are not sticky after separation.

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