Radiation indication label capable of realizing color printing and anti-counterfeiting traceability and production process
By using color printing and invisible QR code technology, the problem of anti-counterfeiting and traceability of irradiation indication labels has been solved, enabling rapid determination of irradiation dose and product traceability, thereby improving the anti-counterfeiting capabilities and industry standardization of irradiation labels.
Patent Information
- Application Number
- CN202511171036.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2025-10-28
AI Technical Summary
The existing irradiation indication labels lack effective anti-counterfeiting measures, making it difficult to trace the responsible party when problems occur during the irradiation process, which affects product quality and industry standards.
The irradiation indication label is color-printable and includes an irradiation indication ink layer, a release ink layer, an irradiation indication information layer, an anti-counterfeiting traceability information layer, and an alcohol-resistant abrasion coating. Combined with a UV invisible variable QR code, it achieves anti-counterfeiting and traceability functions.
It enables rapid determination of irradiation dose and product traceability, enhances the anti-counterfeiting capabilities of irradiation labels, and ensures product quality traceability and industry standardization.
Smart Images

Figure FT_1
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical supplies technology, and in particular to color-printable, anti-counterfeiting and traceable irradiation indicator labels and their manufacturing process. Background Technology
[0002] An irradiation indicator label is a special label that indicates whether an item has been irradiated and the amount of irradiation. It is commonly used on products such as food, pharmaceuticals, and medical devices that undergo irradiation processing such as sterilization and preservation. The principle is that the label contains irradiation-sensitive substances (such as specific irradiation indicator inks), which will change color or display specific identifiable marks after receiving a certain amount of irradiation, thus visually indicating whether the product has undergone irradiation and the approximate degree of irradiation.
[0003] Currently, the labels used in existing technologies lack effective anti-counterfeiting measures. When quality problems occur, due to the lack of traceability information, it is difficult to quickly determine which process in the irradiation process went wrong, making it impossible to find the responsible party in a timely manner. This prevents the problem from being resolved in a timely and effective manner, which may lead to more products with potential quality problems circulating in the market, causing a wider range of adverse effects. It is also not conducive to the standardized and healthy development of the entire irradiation industry. Summary of the Invention
[0004] The purpose of this invention is to solve the problems in the prior art by proposing a color-printable, anti-counterfeiting, and traceable irradiation indication label and its production process.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A color-printable, anti-counterfeiting, and traceable irradiation indication label, the label body comprising, from top to bottom: The irradiation indicator ink layer uses solvent-based irradiation color-changing ink, which changes from yellow to red at an irradiation dose of 5 kGy and turns chestnut red at 100 kGy; An isolation ink layer is applied beneath the irradiation indicator ink layer, with its edges extending outwards by 0.5mm-2mm. The irradiation indication information layer is printed with color blocks comparing irradiation dose levels. Anti-counterfeiting and traceability information layer, including ultraviolet invisible variable QR code; The alcohol-resistant abrasion-resistant coating is composed of water-based ink-absorbing polyurethane resin and abrasion-resistant fillers. Face material layer, pressure-sensitive adhesive layer and release liner layer.
[0006] Preferably, the irradiation indicator ink layer and the isolation ink layer are connected by screen printing. The irradiation indicator information layer is printed on the surface of the isolation ink layer. The anti-counterfeiting traceability information layer is located in the area below the irradiation indicator information layer. The alcohol-resistant abrasion-resistant coating is placed below the anti-counterfeiting traceability information layer. The alcohol-resistant abrasion-resistant coating is applied to the upper surface of the face material layer. The pressure-sensitive adhesive layer is uniformly applied to the lower surface of the face material layer. The release liner layer covers the surface of the pressure-sensitive adhesive layer.
[0007] A manufacturing process for a color-printable, anti-counterfeiting, and traceable irradiation indication label includes the following steps: S1. Select a roll of self-adhesive material for pretreatment; S2. Use corona and dust removal equipment to perform surface dust removal and surface polarity treatment on the self-adhesive roll material in S1; S3. The mixed coating material is applied to the surface of the material treated in S2 using a coating machine. The coating thickness is 20-35μm, resulting in an alcohol-resistant abrasion coating that can be printed with water-based inkjet printer. S4. Using digital printing equipment, the irradiation indication information layer, anti-counterfeiting and traceability information layer are printed in a partial manner on the surface of the material treated by S3. S5. Use flexographic printing equipment to partially print the isolation ink layer onto the surface of the material treated by S3; S6. Using screen printing equipment, the irradiation indicator ink layer is partially printed on top of the isolation ink layer described in S5. The irradiation indicator ink layer and the isolation ink layer are overlaid, and the printing area and size are the same. S7. Using a rotary die-cutting machine, the material processed in S6 is die-cut and waste is removed to obtain the final finished label.
[0008] Preferably, in step S1, the thickness of the selected self-adhesive roll material is 30-200 μm, and in step S2, the surface energy of the treated self-adhesive roll material is 40-50 dynes.
[0009] Preferably, in step S3, the raw materials of the coating material include: 35-45 parts deionized water; 45-55 parts of water-based ink-absorbing polyurethane resin; 15-25 parts of matte and abrasion-resistant filler; 0.3-0.6 parts of dispersant; 0.2-0.3 parts of leveling agent; 0.1-0.3 parts of wetting agent; Add 0.1-0.3 parts of defoamer, then add all raw materials to a mixing tank and mix to obtain the coating material.
[0010] Further, step S5 specifically involves printing the isolation ink layer twice using UV flexographic varnish. The first pass uses an anilox roller at 360 lpi / 9.1 BCM, and the second pass uses a roller at 440 lpi / 5.4 BCM. The edge of the isolation ink layer extends 0.5-2 mm beyond the irradiation indicator ink layer in S6.
[0011] Furthermore, the irradiation indication information layer, anti-counterfeiting and traceability information layer in step S4 are not overprinted with the isolation ink layer in step S5.
[0012] Preferably, step S6 specifically involves: using a 150-mesh screen to print solvent-based irradiated color-changing ink with a solid content of 42%-44% and a viscosity of 800 cps, printing twice and drying at 60℃-70℃, and adding 5%-10% propylene glycol monomethyl ether acetate.
[0013] Compared with existing technologies, this invention provides a color-printable, anti-counterfeiting, and traceable irradiation indication label and its manufacturing process, which has the following beneficial effects: 1. This color-printable, anti-counterfeiting, and traceable irradiation indicator label, while possessing the irradiation indication function of ordinary irradiation indicator labels, also features an irradiation indication information layer printed on the edge of the irradiation indicator ink. This information layer uses contrasting color blocks for different levels of irradiation dose to allow users to quickly determine the dose level of the product's irradiation. Compared to ordinary irradiation indicator labels, the product also features a variable QR code that can only be recognized by the naked eye or scanning equipment under ultraviolet light, which is an anti-counterfeiting feature. The unique QR code on each label, combined with the company's data management platform, can also serve as a product traceability function. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the color-printable, anti-counterfeiting, and traceable irradiation indication label proposed in this invention.
[0015] In the diagram: 10, Irradiation indicator ink layer; 20, Isolation ink layer; 30, Irradiation indicator information layer; 40, Anti-counterfeiting traceability information layer; 50, Alcohol-resistant abrasion-resistant coating; 60, Face material layer; 70, Pressure-sensitive adhesive layer; 80, Release backing paper layer. Detailed Implementation
[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0017] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0018] Example 1: Refer to Figure 1 The tag itself, from top to bottom, includes: The irradiation indicator ink layer 10 uses solvent-based irradiation color-changing ink, which changes from yellow to red at an irradiation dose of 5 kGy and turns chestnut red at 100 kGy. An isolation ink layer 20 covers the irradiation indicator ink layer and extends outward by 0.5mm-2mm at its edge; Irradiation indication information layer 30 is printed with color blocks for irradiation dose level comparison; Anti-counterfeiting and traceability information layer 40, including ultraviolet invisible variable QR code; Alcohol-resistant abrasion coating 50 is composed of water-based ink-absorbing polyurethane resin and abrasion-resistant filler; Face material layer 60, pressure-sensitive adhesive layer 70, and release liner layer 80.
[0019] The irradiation indicator ink layer 10 and the isolation ink layer 20 are connected by screen printing. The irradiation indicator information layer 30 is printed on the surface of the isolation ink layer 20. The anti-counterfeiting traceability information layer 40 is located in the area below the irradiation indicator information layer 30. The alcohol-resistant abrasion coating 50 is placed below the above functional layers. The alcohol-resistant abrasion coating 50 is coated on the upper surface of the face material layer 60. The pressure-sensitive adhesive layer 70 is uniformly coated on the lower surface of the face material layer 60. The release liner layer 80 covers the surface of the pressure-sensitive adhesive layer 70.
[0020] The structural diagram of the color-printed traceable irradiation indication tag of this invention is attached. Figure 1 ; The irradiation indicator ink layer 10 is yellow before irradiation and turns red after irradiation. The color change begins when the irradiation dose is 5 kGy, and gradually deepens with increasing irradiation dose. When the dose reaches 100 kGy, the color becomes maroon and remains stable. The isolation ink layer 20 prevents the irradiation indicator ink from reacting chemically with the water-based inkjet-printable, alcohol-resistant rubbing coating, thus preventing abnormal discoloration of the irradiation indicator ink caused by the reaction and ensuring its functionality remains unaffected. The irradiation indication information layer 30 allows the label to quickly determine its color after irradiation by observing the color of the irradiation ink layer and comparing it with the dose indication color block in the indication information layer. The irradiation dose range is generally set, but not limited to, these four ranges: 15-25 KGy, 25-40 KGy, 40-70 KGy, and ≥70 KGy. The anti-counterfeiting and traceability information layer 40 presents variable QR codes through printing invisible ink. The invisible QR codes have a high anti-copying function and can also be used to trace product information. The water-based inkjet printable and alcohol-resistant coating 50 can meet the requirements for color printing of labels on most water-based inkjet printers. Due to the certain thickness of the coating, the water-based ink-absorbing polyurethane resin in the coating facilitates the rapid penetration and drying of water-based inks. The wear-resistant and alcohol-resistant components in the coating can well meet the requirements for alcohol abrasion resistance, protecting the ink from corrosion and friction.
[0021] The face stock layer 60, as one of the outermost structures of the label, provides solid physical support for the functional layers above, enabling them to adhere to and maintain a stable structural shape. This ensures that the entire label will not easily deform or be damaged under different usage scenarios, maintaining the relative positions and connections between the layers. The pressure-sensitive adhesive layer 70, through its own adhesiveness, can firmly stick the entire label to the surface of the product to be attached, ensuring that the label will not easily fall off during normal storage, transportation, and use of the product, guaranteeing a tight bond between the label and the product, allowing it to move with the product and continue to function. The selection of pressure-sensitive adhesive usually considers its compatibility with different product surfaces, such as good adhesion to different materials like plastic, glass, and paper. It also takes into account the strength of the adhesion after application and the ease of removal without leaving excessive adhesive residue, to meet diverse usage needs. The release liner layer 80 covers the surface of the pressure-sensitive adhesive layer before the label is used, serving as an isolation and protection mechanism to prevent the pressure-sensitive adhesive layer from accidentally adhering to external objects, avoiding contamination and failure of the adhesive layer, and ensuring that the pressure-sensitive adhesive still has good adhesion and bonding performance during use.
[0022] Example 2: Refer to Figure 1 A manufacturing process for a color-printable, anti-counterfeiting, and traceable irradiation indicator label as claimed in claim 1 includes the following steps: S1. Select a roll of self-adhesive material for pretreatment; S2. Use corona and dust removal equipment to perform surface dust removal and surface polarity treatment on the self-adhesive roll material in S1; S3. The mixed coating material is applied to the surface of the material treated in S2 using a coating machine. The coating thickness is 30μm, resulting in an alcohol-resistant abrasion-resistant coating 50 that can be printed by water-based inkjet printing. S4. Using digital printing equipment, the irradiation indication information layer 30 and the anti-counterfeiting and traceability information layer 40 are sequentially printed on the surface of the material treated by S3. S5. Using flexographic printing equipment, the isolation ink layer 20 is partially printed on the surface of the material treated by S3. S6. Using screen printing equipment, the irradiation indicator ink layer 10 is partially printed on top of the isolation ink layer 20 in S5. The irradiation indicator ink layer 10 and the isolation ink layer 20 are overprinted, and the printing area and size are the same. S7. Using a rotary die-cutting machine, the material processed in S6 is die-cut and waste is removed to obtain the final finished label.
[0023] In step S1, the thickness of the selected self-adhesive roll material is 100 μm. In step S2, the surface energy of the treated self-adhesive roll material is 40-50 dynes.
[0024] In step S3, the raw materials for the coating material include: 40 portions of deionized water; 50 parts of water-based ink-absorbing polyurethane resin; 20 parts of matte and abrasion-resistant filler; 0.5 parts of dispersant; 0.2 parts leveling agent; 0.2 parts of wetting agent; Add 0.2 parts of defoamer, then add all raw materials to the mixing tank and mix to obtain the coating material.
[0025] Step S5 specifically involves printing the isolation ink layer twice using UV flexographic varnish. The first pass uses an anilox roller at 360 lpi / 9.1 BCM, and the second pass uses a roller at 440 lpi / 5.4 BCM. The edge of the isolation ink layer extends 1 mm beyond the irradiation indicator ink layer in S6.
[0026] The irradiation indication information layer 30 and the anti-counterfeiting and traceability information layer 40 in step S4 are not overprinted with the isolation ink layer 20 in step S5.
[0027] Step S6 specifically involves: using a 150-mesh screen to screen print solvent-based irradiated color-changing ink with a solid content of 44% and a viscosity of 800 cps, printing twice and drying at 65°C, and adding 10% propylene glycol monomethyl ether acetate. In this invention, the face material layer of the self-adhesive material in step S1 can be a white PE film, a white PET film, a white synthetic paper, or other materials; the pressure-sensitive adhesive layer of the self-adhesive material uses an acrylic adhesive; and the release liner layer of the self-adhesive material uses glassine release liner. The digital printing equipment used in step S4 is HP Indigo 6800; the irradiation detection information layer is printed with four inks: Cyan, Magenta, Yellow, and Black; and the invisible QR code of the anti-counterfeiting and traceability information layer is printed with ultraviolet invisible yellow ink. The isolation ink layer in step S5 uses UV flexographic varnish and is printed twice. The first printing roller is 360 lpi / 9.1 BCM and the second printing roller is 440 lpi / 5.4 BCM. The isolation ink layer in step S5 has a bleed of 0.5 mm to 2 mm beyond the edge of the irradiation indicator ink layer in step S6. In step S6, the screen printing machine uses a 150-mesh screen, prints twice, and dries at a temperature of 60℃-70℃. The additive used is propylene glycol monomethyl ether acetate, with an addition ratio of 5%-10%. The color-printed traceable irradiation indicator label of this invention has passed the environmental testing verification of medical device end customers. The test conditions are: first, a low temperature of -30℃ for 12 hours, then a high temperature of 60℃ / 30%RH for 12 hours, for a total of ten cycles. After the environmental testing, the irradiation indicator ink layer showed no obvious color change.
[0028] The color-printed traceability irradiation indicator label of this invention, compared to ordinary irradiation indicator labels, is coated with a water-based inkjet printable and alcohol-resistant abrasion coating. It passed printing tests with an Epson CW-C6000 series water-based inkjet printer, and the printed content also passed abrasion resistance tests using a Taber 5750 linear abrasion tester. Test conditions: the friction head was wrapped with four layers of non-woven fabric impregnated with 70% IPA, the friction head was loaded with 500g, the friction stroke was 2.5 inches, the linear speed of the friction head was 30 cycles / min, and after 100 cycles of abrasion, the printed information remained clearly visible. Ordinary irradiation indicator labels generally do not have water-based color inkjet printing capabilities, and their printed content is difficult to resist abrasion through IPA impregnation.
[0029] Example 3: Refer to Figure 1 A manufacturing process for a color-printable, anti-counterfeiting, and traceable irradiation indicator label as claimed in claim 1 includes the following steps: S1. Select a roll of self-adhesive material for pretreatment; S2. Use corona and dust removal equipment to perform surface dust removal and surface polarity treatment on the self-adhesive roll material in S1; S3. The mixed coating material is applied to the surface of the material treated in S2 using a coating machine. The coating thickness is 25μm, resulting in an alcohol-resistant abrasion-resistant coating 50 that can be printed by water-based inkjet printing. S4. Using digital printing equipment, the irradiation indication information layer 30 and the anti-counterfeiting and traceability information layer 40 are sequentially printed on the surface of the material treated by S3. S5. Using flexographic printing equipment, the isolation ink layer 20 is partially printed on the surface of the material treated by S3. S6. Using screen printing equipment, the irradiation indicator ink layer 10 is partially printed on top of the isolation ink layer 20 in S5. The irradiation indicator ink layer 10 and the isolation ink layer 20 are overprinted, and the printing area and size are the same. S7. Using a rotary die-cutting machine, the material processed in S6 is die-cut and waste is removed to obtain the final finished label.
[0030] In step S1, the thickness of the selected self-adhesive roll material is 80 μm. In step S2, the surface energy of the treated self-adhesive roll material is 40-50 dynes.
[0031] In step S3, the raw materials for the coating material include: 45 parts deionized water; 45 parts of water-based ink-absorbing polyurethane resin; 25 parts of matte and abrasion-resistant filler; 0.4 parts of dispersant; 0.3 parts leveling agent; 0.1 parts of wetting agent; Add 0.2 parts of defoamer, then add all raw materials to the mixing tank and mix to obtain the coating material.
[0032] Step S5 specifically involves printing the isolation ink layer twice using UV flexographic varnish. The first pass uses an anilox roller at 360 lpi / 9.1 BCM, and the second pass uses a roller at 440 lpi / 5.4 BCM. The edge of the isolation ink layer extends 1 mm beyond the irradiation indicator ink layer in S6.
[0033] The irradiation indication information layer 30 and the anti-counterfeiting and traceability information layer 40 in step S4 are not overprinted with the isolation ink layer 20 in step S5.
[0034] Step S6 specifically involves: using a 150-mesh screen to screen print solvent-based irradiated color-changing ink with a solid content of 42% and a viscosity of 800 cps, printing twice and drying at 60°C, and adding 10% propylene glycol monomethyl ether acetate. In this invention, the face material layer of the self-adhesive material in step S1 can be a white PE film, a white PET film, a white synthetic paper, or other materials; the pressure-sensitive adhesive layer of the self-adhesive material uses an acrylic adhesive; and the release liner layer of the self-adhesive material uses glassine release liner. The digital printing equipment used in step S4 is HP Indigo 6800; the irradiation detection information layer is printed with four inks: Cyan, Magenta, Yellow, and Black; and the invisible QR code of the anti-counterfeiting and traceability information layer is printed with ultraviolet invisible yellow ink. The isolation ink layer in step S5 uses UV flexographic varnish and is printed twice. The first printing roller is 360 lpi / 9.1 BCM and the second printing roller is 440 lpi / 5.4 BCM. The isolation ink layer in step S5 has a bleed of 2 mm beyond the edge of the irradiation indicator ink layer in step S6. In step S6, the screen printing machine uses a 150-mesh screen, prints twice, and dries at a temperature of 60℃-70℃. The additive used is propylene glycol monomethyl ether acetate, with an addition ratio of 5%-10%. The color-printed traceable irradiation indicator label of this invention has passed the environmental testing verification of medical device end customers. The test conditions are: first, a low temperature of -30℃ for 12 hours, then a high temperature of 60℃ / 30%RH for 12 hours, for a total of ten cycles. After the environmental testing, the irradiation indicator ink layer showed no obvious color change.
[0035] The color-printed traceability irradiation indicator label of this invention, compared to ordinary irradiation indicator labels, is coated with a water-based inkjet printable and alcohol-resistant abrasion coating. It passed printing tests with an Epson CW-C6000 series water-based inkjet printer, and the printed content also passed abrasion resistance tests using a Taber 5750 linear abrasion tester. Test conditions: the friction head was wrapped with four layers of non-woven fabric impregnated with 70% IPA, the friction head was loaded with 500g, the friction stroke was 2.5 inches, the linear speed of the friction head was 30 cycles / min, and after 100 cycles of abrasion, the printed information remained clearly visible. Ordinary irradiation indicator labels generally do not have water-based color inkjet printing capabilities, and their printed content is difficult to abrade-resistant through IPA impregnation. The color-printed traceable irradiation indicator label of this invention, while having the irradiation indication function of a regular irradiation indicator label, also has an irradiation indication information layer printed on the edge of the irradiation indicator ink. This information layer has comparative reference color blocks of different levels of irradiation dose printed on it, which makes it easy for users to quickly determine the dose level of the product being irradiated.
[0036] The color-printed traceability irradiation indicator label of this invention includes anti-counterfeiting and traceability functions. Compared with ordinary irradiation indicator labels, the product is printed with a variable QR code that can only be recognized by the naked eye or scanning equipment under ultraviolet light irradiation. This is the embodiment of anti-counterfeiting function. The unique QR code on each label, combined with the enterprise's data management platform, can also play a role in product traceability.
[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A color-printable, anti-counterfeiting, and traceable irradiation indication label, characterized in that: The tag itself, from top to bottom, includes: The irradiation indicator ink layer (10) uses solvent-based irradiation color-changing ink, which changes from yellow to red when the irradiation dose is 5 kGy and turns chestnut red when the irradiation dose is 100 kGy. An isolation ink layer (20) covers the irradiation indicator ink layer and extends outward by 0.5 mm to 2 mm at the edge; The irradiation instruction information layer (30) is printed with irradiation dose level contrast color blocks; Anti-counterfeiting traceability information layer (40), including ultraviolet invisible variable QR code; An alcohol-resistant abrasion-resistant coating (50) is composed of water-based ink-absorbing polyurethane resin and abrasion-resistant filler; The face material layer (60), the pressure-sensitive adhesive layer (70), and the release liner layer (80).
2. The color-printable, anti-counterfeiting, and traceable irradiation indication label according to claim 1, characterized in that, The irradiation indicator ink layer (10) and the isolation ink layer (20) are connected by screen printing. The irradiation indicator information layer (30) is printed on the surface of the isolation ink layer (20). The anti-counterfeiting traceability information layer (40) is located in the area below the irradiation indicator information layer (30). The alcohol-resistant abrasion coating layer (50) is placed below the anti-counterfeiting traceability information layer (40). The alcohol-resistant abrasion coating layer (50) is coated on the upper surface of the face material layer (60). The pressure-sensitive adhesive layer (70) is uniformly coated on the lower surface of the face material layer (60). The release liner layer (80) covers the surface of the pressure-sensitive adhesive layer (70).
3. A manufacturing process for a color-printable, anti-counterfeiting, and traceable irradiation indicator label as described in claim 1, characterized in that, Includes the following steps: S1. Select a roll of self-adhesive material for pretreatment; S2. Use corona and dust removal equipment to perform surface dust removal and surface polarity treatment on the self-adhesive roll material in S1; S3. The mixed coating material is applied to the surface of the material treated in S2 using a coating machine. The coating thickness is 20-35μm to obtain an alcohol-resistant abrasion-resistant coating (50) that can be printed by water-based inkjet printing. S4. Using digital printing equipment, the irradiation instruction information layer (30) and the anti-counterfeiting and traceability information layer (40) are printed in sequence on the surface of the material treated by S3. S5. Using flexographic printing equipment, the isolation ink layer (20) is partially printed on the surface of the material treated by S3. S6. Using a screen printing machine, the irradiation indicator ink layer (10) is partially printed on top of the isolation ink layer (20) described in S5. The irradiation indicator ink layer (10) and the isolation ink layer (20) are overprinted, and the printing area and size are the same. S7. Using a rotary die-cutting machine, the material processed in S6 is die-cut and waste is removed to obtain the final finished label.
4. The production process of the color-printable and anti-counterfeiting traceable irradiation indicator label according to claim 3, characterized in that, In step S1, the thickness of the selected self-adhesive roll material is 30-200 μm. In step S2, the surface energy of the treated self-adhesive roll material is 40-50 dynes.
5. The production process of the color-printable and anti-counterfeiting traceable irradiation indicator label according to claim 3, characterized in that, In step S3, the raw materials for the coating material include: 35-45 parts deionized water; 45-55 parts of water-based ink-absorbing polyurethane resin; 15-25 parts of matte and abrasion-resistant filler; 0.3-0.6 parts of dispersant; 0.2-0.3 parts of leveling agent; 0.1-0.3 parts of wetting agent; Add 0.1-0.3 parts of defoamer, then add all raw materials to a mixing tank and mix to obtain the coating material.
6. The production process of the color-printable and anti-counterfeiting traceable irradiation indicator label according to claim 3, characterized in that, Step S5 specifically involves printing the isolation ink layer twice using UV flexographic varnish. The first pass uses an anilox roller at 360 lpi / 9.1 BCM, and the second pass uses a roller at 440 lpi / 5.4 BCM. The edge of the isolation ink layer extends 0.5-2 mm beyond the irradiation indicator ink layer in S6.
7. The production process of the color-printable and anti-counterfeiting traceable irradiation indicator label according to claim 6, characterized in that, The irradiation instruction information layer (30), anti-counterfeiting and traceability information layer (40) in step S4 have no overprinting relationship with the isolation ink layer (20) in step S5.
8. The production process of the color-printable and anti-counterfeiting traceable irradiation indicator label according to claim 3, characterized in that, Step S6 specifically involves: using a 150-mesh screen to print solvent-based irradiated color-changing ink with a solid content of 42%-44% and a viscosity of 800 cps, printing twice and drying at 60℃-70℃, and adding 5%-10% propylene glycol monomethyl ether acetate.
