A UV light-cured material and a holographic anti-counterfeiting patch film

Abstract

The application provides a photocuring material and a holographic anti-fake patch film, the UV photocuring material comprises the following components: 10-30 parts of fluorosil-modified acrylic resin, 10-5 parts of methyl methacrylate phosphate, 30-10 parts of polybutadiene polyurethane acrylate, 10-15 parts of glycidyl methacrylate, 20-10 parts of isobornyl methacrylate, 5 parts of nano silicon oxide, 10-20 parts of polyethylene glycol dithiol and 5 parts of 184 photoinitiator; the holographic anti-fake patch film comprises a carrier, a connecting layer, a wear-resistant layer, a base film, an imaging layer, a plating layer and a glue layer from bottom to top, wherein the wear-resistant layer is coated by the UV photocuring material. The holographic patch film prepared by the application not only can provide a holographic anti-fake pattern and improve the anti-fake strength of the certificate card, but also has good wear resistance, chemical resistance, anti-graffiti and self-repairing performance, so that the certificate card can be protected from being worn, corroded and damaged, and the service life of the certificate card can be improved.

Description

Technical Field

[0001] This invention relates to the field of anti-counterfeiting printing, and more specifically, to a UV-curable material and a holographic anti-counterfeiting patch film. Background Technology

[0002] In people's daily lives, identification cards are an indispensable part. However, identification cards are worn down during daily use, causing problems such as the information on the cards becoming difficult to read and a decline in appearance, which seriously affects the use of identification cards and the security of the documents. Summary of the Invention

[0003] This invention addresses the technical problems existing in the prior art by providing a UV-curable material and a holographic anti-counterfeiting patch film, which not only enhances the anti-counterfeiting capabilities of identification cards but also has wear-resistant, scratch-resistant, and self-healing properties.

[0004] According to a first aspect of the present invention, a UV-curable material is provided, comprising:

[0005] The mixture comprises 10-30 parts by weight of fluorosilicone modified acrylic resin, 5-10 parts by weight of phosphate methacrylate, 10-30 parts by weight of polybutadiene polyurethane acrylate, 10-15 parts by weight of glycidyl methacrylate, 10-20 parts by weight of isobornyl methacrylate, 5 parts by weight of nano-silica, 10-20 parts by weight of polyethylene glycol dithiol, and 5 parts by weight of 184 photoinitiator.

[0006] According to a second aspect of the present invention, a holographic anti-counterfeiting patch film is provided, comprising, from bottom to top, a carrier, a connecting layer, a wear-resistant layer, a base film, an imaging layer, a coating layer, and an adhesive layer, wherein the wear-resistant layer is coated with the UV-curable material described in claim 1, and its thickness is 1~3 μm.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Optionally, the imaging layer has a holographic anti-counterfeiting pattern, wherein the holographic anti-counterfeiting pattern is formed on the imaging layer by hot pressing.

[0009] Optionally, the connecting layer is a silicone adhesive with a thickness of 1~2µm.

[0010] Optionally, the coating is zinc sulfide with a thickness of 200~500 Å.

[0011] Optionally, the carrier is PET with a thickness of 30~50um.

[0012] Optionally, the base film is PET with a thickness of 15~20um.

[0013] This invention provides a UV-curable material and a holographic anti-counterfeiting patch. The UV-curable material has the functions of anti-graffiti, anti-oil stain, chemical corrosion resistance, high wear resistance, and self-healing. After the holographic patch of this invention is applied to the surface of the ID card, the wear-resistant layer is on the outermost layer, which can prevent the ID card from being worn or scratched during use, prevent the ID card from being contaminated by oil stains, and prevent the ID card from being corroded by sweat, chemicals, etc. At the same time, the UV-curable material of the wear-resistant layer has a self-healing function, which can repair the scratches caused to the ID card during use, ensuring the appearance of the holographic anti-counterfeiting patch and the ID card. Attached Figure Description

[0014] Figure 1 A schematic diagram of a holographic anti-counterfeiting patch film structure is provided for a specific solution of the present invention;

[0015] Figure 2 This is a schematic diagram of a card structure using a holographic anti-counterfeiting patch film, which is provided as a specific solution of the present invention.

[0016] The attached diagram lists the components represented by each number as follows:

[0017] 110. Carrier; 120. Connecting layer; 130. Wear-resistant layer; 140. Base film; 150. Imaging layer; 151. Holographic pattern; 160. Coating layer; 170. Adhesive layer; 200. Certificate; 210. Card. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In addition, the technical features of the various embodiments or individual embodiments provided by the present invention can be arbitrarily combined with each other to form feasible technical solutions. Such combinations are not constrained by the order of steps and / or structural composition patterns, but must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0019] The UV-curable material and its preparation method provided by this invention include:

[0020] Weigh out 10-30 parts by weight of fluorosilicone modified acrylic resin, 5-10 parts by weight of phosphate methacrylate, 10-30 parts by weight of polybutadiene polyurethane acrylate, 10-15 parts by weight of glycidyl methacrylate, 10-20 parts by weight of isobornyl methacrylate, 5 parts by weight of nano-silica, 10-20 parts by weight of polyethylene glycol dithiol, and 5 parts by weight of 184 photoinitiator; add them sequentially to a container and stir until completely dispersed to obtain the UV-curable material.

[0021] Figure 1 For holographic anti-counterfeiting patch films made of UV-curable materials, please refer to [link / reference]. Figure 1 The holographic anti-counterfeiting patch film consists of a carrier 110, a connecting layer 120, a wear-resistant layer 130, a base film 140, an imaging layer 150, a coating layer 160, and an adhesive layer 170 from bottom to top. The wear-resistant layer 130 is coated with a UV-curable material and has a thickness of 1~3um.

[0022] The preparation method of the holographic anti-counterfeiting patch film is as follows: 30-50µm PET is used as a carrier 110. A silicone adhesive is coated on the carrier surface to form a connecting layer 120 with a thickness of 1-2µm. 15-25µm PET is used as a base film 140. An imaging layer 150 is coated on one side of the base film 140. A holographic pattern 151 is formed on the imaging layer 150 by hot pressing. Zinc sulfide is vapor-deposited on the surface of the imaging layer 150 to form a coating 160 with a thickness of 200-500Å. An adhesive layer 170 is coated on the coating 160. The aforementioned UV-curable material is coated on the side of the base film 140 away from the imaging layer to form a wear-resistant layer 130 with a thickness of 1-3µm. Then, the connecting layer 120 and the wear-resistant layer 130 are bonded together. Through die-cutting and slitting, the holographic patch film 100 is finally obtained.

[0023] During use, the holographic patch film 100 is applied to the surface of the card 210 via thermal transfer, forming a card 200 with the holographic patch film. A schematic diagram of the card's structure can be found here. Figure 2 .

[0024] In the above scheme, the presence of low-activity fluorosilicone groups in the fluorosilicone-modified acrylic resin gives the cured photocurable material low surface energy and poor adhesion, resulting in anti-graffiti and anti-oil properties. It also provides a smooth surface, reducing the coefficient of friction and providing anti-friction effects. The addition of nano-silica improves the wear resistance of the photocurable material, and combined with the fluorosilicone-modified acrylic resin, the photocurable material exhibits excellent wear resistance. Polybutadiene polyurethane acrylate has hydrophobic properties, while glycidyl methacrylate and isobornyl methacrylate both possess water and chemical resistance. The combination of these three enhances the water and chemical corrosion resistance of the photocurable material. Furthermore, the addition of polybutadiene polyurethane acrylate, glycidyl methacrylate, isobornyl methacrylate, and phosphate methacrylate improves the adhesion between the photocurable material and PET. Polyethylene glycol dithiol has a disulfide bond structure, a dynamic chemical bond. The introduction of disulfide bonds endows the photocurable material with self-healing capabilities, automatically repairing scratches on the coating surface. Using the photocurable material of this invention as the wear-resistant layer material to make a holographic patch film, after the holographic patch film is covered on the surface of the card, the wear-resistant layer is the outermost layer of the card. It can not only provide holographic anti-counterfeiting patterns and improve the anti-counterfeiting level of the card, but also provide the card with wear-resistant, anti-graffiti, water-resistant and chemical corrosion-resistant properties. At the same time, it can also automatically repair scratches formed on the surface of the wear-resistant layer during the use of the card, thereby improving the service life of the card.

[0025] Examples of the UV-curable material and the holographic anti-counterfeiting patch film prepared therefrom provided by this invention are as follows:

[0026] Example 1

[0027] Preparation of UV-curable materials:

[0028] Weigh out 10 parts by weight of fluorosilicone modified acrylic resin, 10 parts by weight of phosphate methacrylate, 30 parts by weight of polybutadiene polyurethane acrylate, 10 parts by weight of glycidyl methacrylate, 20 parts by weight of isobornyl methacrylate, 5 parts by weight of nano-silica, 10 parts by weight of polyethylene glycol dithiol, and 5 parts by weight of 184 photoinitiator, and add them sequentially to a container. Stir until completely dispersed to obtain the UV-curable material.

[0029] Preparation of holographic anti-counterfeiting patch film:

[0030] A 30µm PET substrate 110 is used as the carrier, and a silicone adhesive is coated on the carrier surface to form a connecting layer 120 with a thickness of 1µm. A 15µm PET substrate 140 is used as the base film, and an imaging layer 150 is coated on one side of the base film 140. A holographic pattern 151 is formed on the imaging layer 150 by hot pressing. Zinc sulfide is vapor-deposited on the surface of the imaging layer 150 to form a coating 160 with a thickness of 200Å. An adhesive layer 170 is coated on the surface of the coating 160. The aforementioned UV-curable material is coated on the side of the base film 140 adjacent to the imaging layer to form a wear-resistant layer 130 with a thickness of 1µm. Then, the connecting layer 120 and the wear-resistant layer 130 are bonded together, and the holographic patch film 100 is finally obtained by die-cutting and slitting.

[0031] Example 2:

[0032] Preparation of UV-curable materials:

[0033] Weigh out 20 parts by weight of fluorosilicone modified acrylic resin, 7.5 parts by weight of phosphate methacrylate, 20 parts by weight of polybutadiene polyurethane acrylate, 12.5 parts by weight of glycidyl methacrylate, 15 parts by weight of isobornyl methacrylate, 5 parts by weight of nano-silica, 15 parts by weight of polyethylene glycol dithiol, and 5 parts by weight of 184 photoinitiator; add them sequentially to a container and stir until completely dispersed to obtain the UV-curable material.

[0034] Preparation of holographic patch film:

[0035] A 40µm PET substrate 110 is used as the carrier. A silicone adhesive is coated on the carrier surface to form a connecting layer 120 with a thickness of 1.5µm. A 20µm PET substrate 140 is used as the base film. An imaging layer 150 is coated on one side of the base film 140. A holographic pattern 151 is formed on the imaging layer 150 by hot pressing. Zinc sulfide is vapor-deposited on the surface of the imaging layer 150 to form a coating 160 with a thickness of 350Å. An adhesive layer 170 is coated on the surface of the coating 160. The aforementioned UV-curable material is coated on the side of the base film 140 closest to the imaging layer to form a wear-resistant layer 130 with a thickness of 2µm. Then, the connecting layer 120 and the wear-resistant layer 130 are bonded together, and the holographic patch film 100 is finally obtained by die-cutting and slitting.

[0036] Example 3:

[0037] Preparation of UV-curable materials:

[0038] Weigh out 30 parts by weight of fluorosilicone modified acrylic resin, 5 parts by weight of phosphate methacrylate, 10 parts by weight of polybutadiene polyurethane acrylate, 15 parts by weight of glycidyl methacrylate, 10 parts by weight of isobornyl methacrylate, 5 parts by weight of nano-silica, 20 parts by weight of polyethylene glycol dithiol, and 5 parts by weight of 184 photoinitiator; add them sequentially to a container and stir until completely dispersed to obtain the UV-curable material.

[0039] Preparation of holographic patch film:

[0040] A 50µm PET substrate 110 is used as the carrier. A silicone adhesive is coated on the surface of the carrier to form a connecting layer 120 with a thickness of 2µm. A 25µm PET substrate 140 is used as the base film. An imaging layer 150 is coated on one side of the base film 140. A holographic pattern 151 is formed on the imaging layer 150 by hot pressing. Zinc sulfide is vapor-deposited on the surface of the imaging layer 150 to form a coating 160 with a thickness of 500Å. An adhesive layer 170 is coated on the surface of the coating 160. The aforementioned UV-curable material is coated on the side of the base film 140 adjacent to the imaging layer to form a wear-resistant layer 130 with a thickness of 3µm. Then, the connecting layer 120 and the wear-resistant layer 130 are bonded together. Through die-cutting and slitting, the holographic patch film 100 is finally obtained.

[0041] The following are some comparative examples:

[0042] Comparative Example 1

[0043] This comparison provides a UV-curable material and a patch film prepared therefrom, the raw materials and steps of which are basically the same as those in Example 3, except that the UV-curable material component removes the fluorosilicone modified acrylic resin.

[0044] Comparative Example 2

[0045] This comparison provides a UV-curable material and a patch film prepared therefrom, the raw materials and steps of which are basically the same as those in Example 3, the difference being that the UV-curable material components have removed nano-silicon oxide.

[0046] Comparative Example 3

[0047] This comparison provides a UV-curable material and a patch film prepared therefrom, the raw materials and steps of which are basically the same as those in Example 3, except that the UV-curable material components have removed polyethylene glycol dithiol.

[0048] Comparative Example 4

[0049] This comparison provides a UV-curable material and a patch film prepared therefrom, the raw materials and steps of which are basically the same as those in Example 3, except that glycidyl methacrylate is removed from the UV-curable material components.

[0050] Comparative Example 5

[0051] This comparison provides a UV-curable material and a patch film prepared therefrom, the raw materials and steps of which are basically the same as those in Example 3, except that the UV-curable material components have removed phosphate methacrylate.

[0052] Comparative Example 6

[0053] This comparison provides a UV-curable material and a patch film prepared therefrom, the raw materials and steps of which are basically the same as those in Example 3, except that isobornyl methacrylate is removed from the UV-curable material components.

[0054] To further investigate the performance of the holographic anti-counterfeiting patch films prepared in Examples 1-3 and Comparative Examples 1-6, their parameters were measured, and the results are shown in Table 1 below.

[0055] Table 1 compares the performance parameters of the prepared holographic patch films in the examples.

[0056]

[0057] Among them, the wear resistance test is as follows: a rubber tip is used to load a 1kg weight and rub it 3000 times. If there are no scratches or coating peeling, it is considered good.

[0058] The adhesion between the UV-curable material and PET was tested according to the method in GB / T9286;

[0059] Solvent resistance test: ethanol, ethyl acetate and butanone are dropped onto a non-woven gauze, a force of 500g is applied, and the surface is wiped back and forth 50 times. If there are no scratches on the surface, it is considered good.

[0060] Acid and alkali resistance test: Drip 5% hydrochloric acid and 5% sodium hydroxide solution onto a piece of non-woven gauze, apply a force of 500g, and wipe back and forth 50 times. If there are no scratches on the surface, it is considered good.

[0061] Anti-graffiti test: Draw on the wear-resistant layer surface with a whiteboard marker and an oil-based marker, leave for 30 minutes, and then wipe it off. If it can be easily wiped clean, it is considered good.

[0062] Self-healing test: UV-curable material is coated on the PET surface, and then stretched using a universal testing machine until slight cracks appear in the UV-curable material coating. The UV-curable material coating is then irradiated under a UV lamp for 2 minutes. If the cracks heal themselves, it is considered good.

[0063] This invention provides a UV-curable material and a holographic anti-counterfeiting patch film. The UV-curable material has the functions of anti-graffiti, anti-oil, anti-chemical corrosion, high wear resistance, and self-healing. After the holographic patch of this invention is applied to the surface of the ID card, the wear-resistant layer is on the outermost layer, which can prevent the ID card from being worn or scratched during use, prevent the ID card from being contaminated by oil, and prevent the ID card from being corroded by sweat, chemicals, etc. At the same time, the wear-resistant layer UV-curable material has a self-healing function, which can repair the scratches caused to the ID card during use, and ensure the appearance of the holographic anti-counterfeiting patch and the ID card.

[0064] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0065] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0066] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A UV light-cured material, characterized by, It comprises: 10-30 parts by weight of fluorosilicon modified acrylic resin, 5-10 parts by weight of methacrylic acid phosphate ester, 10-30 parts by weight of polybutadiene polyurethane acrylate, 10-15 parts by weight of glycidyl methacrylate, 10-20 parts by weight of isobornyl methacrylate, 5 parts by weight of nano silicon oxide, 10-20 parts by weight of polyethylene glycol dithiol and 5 parts by weight of 184 photoinitiator. From bottom to top, it comprises a carrier, a connecting layer, a wear-resistant layer, a base film, an imaging layer, a plating layer and a glue layer, wherein the wear-resistant layer is coated by the UV light curing material in claim 1, and the thickness is 1-3 um.

2. A holographic security Patch film, characterized in that, The imaging layer has a holographic anti-counterfeiting pattern, wherein the holographic anti-counterfeiting pattern is formed on the imaging layer by hot pressing.

3. A holographic security patch film according to claim 2, wherein, The connecting layer is a silica gel adhesive, and the thickness is 1-2 um.

4. The holographic security patch film according to claim 2, wherein, The plating layer is zinc sulfide, and the thickness is 200-500 Å.

5. The holographic security patch film according to claim 2, wherein, The carrier is PET, and the thickness is 30-50 um.

6. The holographic security patch film according to claim 2, wherein, The base film is PET, and the thickness is 15-20 um.

7. The holographic security patch film according to claim 2, wherein, ​

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