Variable laser transfer label
Patent Information
- Application Number
- CN202521878907.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-02
AI Technical Summary
Existing anti-counterfeiting labels have limited functionality, and the various functional layers are prone to interference, making it difficult to meet the needs of high-end products for intelligence, multi-functionality, and security.
Design a variable laser hot stamping label comprising a substrate layer, a base adhesive layer, an anti-counterfeiting layer, an information traceability layer, a variable laser hot stamping layer, a temperature indicator layer, and a humidity indicator layer, which are connected by adhesives or physical fixing methods to ensure that each layer operates independently and without interference, integrating anti-counterfeiting, information traceability, temperature monitoring, and humidity monitoring functions.
It achieves multi-functional integration, increases the added value of labels, provides advanced anti-counterfeiting capabilities and information interactivity, and meets the diverse needs of high-end products.
Smart Images
Figure CN224934460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-counterfeiting label technology, specifically a variable laser hot stamping label. Background Technology
[0002] With the development of the commodity economy and consumers' increasing focus on product quality and safety, anti-counterfeiting, traceability, and information interaction functions are becoming increasingly important in product packaging labels. Traditional labels, with their limited functionality, are unable to meet the growing market demands. This is especially true for high-end products, pharmaceuticals, food, and cosmetics, where more intelligent, multifunctional, and highly secure labels are required.
[0003] While existing technologies include anti-counterfeiting labels, RFID tags, and temperature indicator tags, they often have limited functionality. Furthermore, when integrating multiple functions, interference may occur between different functional layers. For example, the anti-counterfeiting pattern may interfere with information reading, or the indicator material may be covered and unable to display properly. In addition, label technologies capable of customizing unique and dynamic anti-counterfeiting patterns to meet specific needs are relatively limited.
[0004] Therefore, a variable laser hot stamping label is needed to solve the problems existing in the above-mentioned background technology and meet market demands. Utility Model Content
[0005] Purpose of the utility model: To provide a variable laser hot stamping label that overcomes the shortcomings of existing labels, such as single function and susceptibility to interference, and realizes multiple functions such as anti-counterfeiting, information traceability, variable laser pattern printing, temperature indication, and humidity indication. Moreover, the functional layers work together without interfering with each other, providing a higher level of information security and interactive experience.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A variable laser hot stamping label includes the following layers: The substrate layer provides overall support and basic shape for the label; The primer layer, placed at the bottom of the substrate layer, is used to bond the product to the desired substrate. Anti-counterfeiting layer: Set on the substrate layer to provide anti-counterfeiting function for the label; The information traceability layer is set on top of the anti-counterfeiting layer. This layer contains a carrier for recording information such as the product's unique identifier, production batch, production date, QR code, and barcode. A variable laser hot stamping layer is set on the information traceability layer. This layer can print laser patterns with highly customized, dynamic and anti-counterfeiting characteristics according to preset instructions through variable laser hot stamping technology. The temperature indicator layer is set on the variable laser hot stamping layer and uses a color-changing material to change color according to changes in ambient temperature, indicating the storage or transportation temperature of the product. A humidity indicator layer is installed on the temperature indicator layer. This layer uses humidity-sensing material and can change its color or display status according to the ambient humidity to indicate the moisture status of the product. The layers are bonded together with an adhesive that has good adhesion and does not affect the function of each layer, or they are connected by physical fixing to ensure that each functional layer operates independently and that information transmission and display do not interfere with each other.
[0007] As a further improvement to the above technical solution: The substrate layer is made of materials such as polyester film, polypropylene film, polyvinyl chloride film, or paper.
[0008] The anti-counterfeiting features of the anti-counterfeiting layer include, but are not limited to: holographic images, microtext, engraved lines, invisible ink, color-changing ink, optically variable ink, security mesh, and embedded security fibers.
[0009] The information carriers in the information traceability layer are: variable data printing areas for printing QR codes, barcodes, and serial numbers; or embedded RFID electronic tags and NFC chips.
[0010] Compared with the prior art, the beneficial effects of this utility model are: Multifunctional integration: It integrates multiple functions such as anti-counterfeiting, traceability, dynamic pattern display, temperature monitoring, and humidity monitoring, thereby increasing the added value of the label.
[0011] Advanced anti-counterfeiting: It combines traditional anti-counterfeiting technology with unique, variable-generation high-security laser patterns, greatly enhancing anti-counterfeiting capabilities.
[0012] Interactive information: Through variable laser patterns and information traceability, richer consumer interaction and product information delivery can be achieved. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] In the diagram: 1. Substrate layer; 2. Base adhesive layer; 3. Anti-counterfeiting layer; 4. Information traceability layer; 5. Variable laser hot stamping layer; 6. Temperature indicator layer; 7. Humidity indicator layer. Detailed Implementation
[0015] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0016] likeFigure 1 As shown, the variable laser hot stamping label of this embodiment includes the following layers: Substrate layer 1 As the main structure of the label, it provides the necessary strength, flexibility, and dimensional stability. Its materials can be polyester film (PET), polypropylene film (PP), polyvinyl chloride film (PVC), metal foil, or specialty paper, etc. The substrate layer 1 can undergo surface treatments such as printing and lamination.
[0017] Base layer 2 Used to firmly bond the substrate layer 1 to the desired product. The primer layer 2 needs to have good adhesion, aging resistance, and compatibility with the materials of each functional layer. It can be an acrylic, rubber, or silicone adhesive.
[0018] Anti-counterfeiting layer 3 This layer, located on substrate layer 1, provides anti-counterfeiting features for the label. It can employ various anti-counterfeiting technologies, such as: 1. Holographic anti-counterfeiting pattern: prepared using grating holographic technology, it has a multi-color grating effect that changes with the angle.
[0019] 2. Microtext / Micropatterns: Through fine printing or etching techniques, tiny text or patterns are formed on the label surface that are difficult to see with the naked eye but can be identified with the aid of magnification equipment.
[0020] 3. Safety inks: including but not limited to fluorescent inks that appear under ultraviolet light, infrared inks that appear under infrared light, water-sensitive inks, heat-sensitive inks (unlike the fourth functional layer, these are irreversible or specific color-changing inks), and engraving inks, etc.
[0021] 4. Embedded security fibers: Fibers of specific colors, with or without fluorescence, are embedded in the label material to increase the difficulty of anti-counterfeiting.
[0022] 5. Engraved texture: Engraved texture with a raised or recessed feel is formed in specific areas to enhance the physical means of anti-counterfeiting.
[0023] The design of this layer must ensure the integrity and clarity of its anti-counterfeiting features.
[0024] Information traceability layer 4 Set on anti-counterfeiting layer 3, this layer contains a carrier for recording information such as the product's unique identifier, production batch, production date, QR code, and barcode. This layer mainly includes: 1. Variable Data Printing (VDP) Area: This is typically a white or light-colored area used to print variable QR codes, barcodes, serial numbers, production dates, production batches, and other information using thermal, inkjet, or laser printing methods. The printing quality in this area must ensure the legibility of the information.
[0025] 2. RFID / NFC Chip Embedding Area: RFID (Radio Frequency Identification) or NFC (Near Field Communication) chips are embedded or pasted into this layer for storing and wirelessly transmitting information. The embedding technology must ensure chip stability and reliable signal transmission.
[0026] To ensure the subsequent pattern printing effect of the variable laser hot stamping layer 5, the QR code / barcode area may need to be designed to be transparent or semi-transparent, or a partial masking technique may be used during the laser hot stamping process.
[0027] Variable laser hot stamping layer 5 Set on the fourth layer of the information traceability layer, this layer can print laser patterns with highly customized, dynamic and anti-counterfeiting characteristics according to preset instructions through variable laser hot stamping technology. Hot stamping materials can be thin films containing metallic coatings (such as aluminum) or dielectric coatings (such as silicon oxide), or special optical materials that can be precisely ablated, melted, or modified by lasers to produce changes in color, diffraction, or reflection.
[0028] Variable laser patterns: By controlling parameters such as laser power, frequency, and scanning path, complex and unique laser patterns can be generated on this layer, such as serialized hidden information, dynamic QR codes, holographic images, and patterns that change with specific triggering conditions (such as angle and temperature).
[0029] To ensure the readability of the second functional layer below (such as a QR code), the variable laser pattern can be designed to be transparent, semi-transparent, or hot-stamped only in specific areas (non-QR code areas), or a laser material with a special optical design can be used so that the QR code information is not significantly interfered with under normal reading angles.
[0030] Temperature indicator layer 6 It is set on the variable laser hot stamping layer 5, using a color-changing material, which changes color according to changes in ambient temperature to indicate the storage or transportation temperature of the product. Thermochromic materials: These materials undergo reversible or irreversible color changes at specific temperature thresholds. For example, they may display one color below a certain temperature, change to another color when that temperature is reached or exceeded, and revert to their original color (reversible) or remain in the changed color state when the temperature returns to normal (irreversible).
[0031] Application: Used to indicate whether a product has experienced abnormally high or low temperatures during storage and transportation, providing a basis for product quality control. This layer is usually a thin printed layer or coating.
[0032] Humidity indicator layer 7 It is installed on the temperature indicator layer 6. This layer is made of humidity-sensing material and can change its color or display status according to the ambient humidity to indicate the moisture status of the product. Humidity-sensing materials: These materials are sensitive to ambient humidity, and their color or appearance changes when the relative humidity reaches a certain level. For example, cobalt chloride indicators are blue when dry and turn pink after absorbing moisture; copper chloride indicators are white when dry and turn blue after absorbing moisture.
[0033] Applications: Used to indicate whether a product is damp, protecting the quality of moisture-sensitive products (such as electronic components, pharmaceuticals, and food). This layer is usually a thin printed layer or coating.
[0034] The layers are bonded together with adhesives that have good adhesion and do not affect the function of each layer, or they are connected by physical fixing methods to ensure that each functional layer operates independently and that information transmission and display do not interfere with each other.
[0035] 1. Adhesive: The functional layers are bonded together using a suitable adhesive. The choice of adhesive is crucial; it must possess the following properties: 2. Good adhesion: Ensures a strong bond between layers and prevents delamination.
[0036] 3. Transparency / Selective Transparency: For light that needs to pass through (such as laser light, QR code scanning light, and display light of indicator materials), the adhesive should be as transparent as possible, or remain transparent in key areas.
[0037] 4. Stability: It can withstand subsequent laser hot stamping, information printing, and temperature, humidity, light and mechanical stress during product storage and use without aging, deterioration or affecting the function of adjacent layers.
[0038] 5. Low volatility: Avoids the release of harmful substances during processing.
[0039] 6. Physical fixing: In some cases, physical fixing methods can also be used, such as pressing or sewing the edges (for paper labels), or embedding components such as chips into specific layers.
[0040] Each layer does not interfere with the others: 1. Structural design: Through a reasonable layer sequence arrangement, the functional layers that are susceptible to interference (such as the QR code that needs to be read and the color-changing temperature and humidity indicator layer 7) are placed in positions that are not easily interfered with, and optically transparent materials are used or partial masking / transparency treatment is applied above them.
[0041] 2. Material Selection: Select materials that are sensitive to specific environmental factors (light, heat, humidity) but insensitive to or minimally affected by other factors. For example, thermochromic materials are sensitive to temperature but relatively insensitive to humidity and direct laser ablation.
[0042] 3. Process Control: During laser hot stamping, information printing, and other processing, process parameters are precisely controlled to avoid damage or impact on other functional layers. For example, in areas where QR codes are printed, laser hot stamping can use extremely low power or avoid that area altogether.
[0043] 4. Optical design: For example, a special diffraction structure can be designed on the laser hot stamping layer so that it presents a pattern at a specific angle. At the QR code scanning angle, the influence of the pattern is minimized. It can even be used in conjunction with optical filters. Specific Implementation
[0044] Example 1: Anti-counterfeiting and traceability label for food packaging Substrate layer 1: 30-micron PET film.
[0045] Base layer 2: Acrylic pressure-sensitive adhesive.
[0046] Anti-counterfeiting layer 3: Printed holographic anti-counterfeiting patterns and micro-text "XXX brand".
[0047] Information Traceability Layer 4: Variable Data Printing Area, printing a QR code (containing product ID, production batch, and production date). This area is a transparent white printing layer.
[0048] Variable laser hot stamping layer 5: Variable laser hot stamping is performed on the non-QR code area of the second functional layer to generate a unique serial number pattern. The pattern is silver-white with a metallic luster. The hot stamping material is an aluminum coating on a PET substrate.
[0049] Temperature indicator layer 6: A thin printed layer using thermochromic ink, which is green at 25°C and turns red above 30°C.
[0050] Humidity indicator layer 7: A thin printed layer using cobalt chloride humidity indicator, which is blue when dry and turns pink when the relative humidity is above 60%.
[0051] Example of process flow: First, holographic printing and micro-text printing are performed on the PET film. Then, a transparent QR code area is printed on it. Next, variable laser hot stamping is performed on the non-QR code areas using laser equipment. After that, thermochromic ink and humidity indicator ink are printed on the laser hot stamping layer. Finally, the multi-layered label is die-cut and adhesive-backed.
[0052] Usage effect: Consumers can scan a QR code with their mobile phones to trace product information. They can also determine product authenticity by observing the uniqueness of the laser pattern. If the product has been exposed to high temperature or high humidity environments, the temperature indicator layer 6 or humidity indicator layer 7 will display a corresponding color change, alerting consumers to product quality issues.
[0053] Example 2: Anti-counterfeiting traceability and temperature monitoring labels for pharmaceutical packaging Substrate layer 1: 25-micron transparent PET film.
[0054] Base layer 2: Silicone pressure-sensitive adhesive, with excellent chemical resistance and long-term stability.
[0055] Anti-counterfeiting layer 3: Embedded security fibers and fluorescent markings that appear under ultraviolet light.
[0056] Information traceability layer 4: The RFID chip is attached, and the area above the chip is reserved for subsequent printing of the serial number (printed on the transparent layer). The surface of the RFID chip is covered with a protective transparent film.
[0057] Variable laser hot stamping layer 5: A variable laser hot stamping is applied around the RFID area to generate batch numbers and anti-counterfeiting patterns. The laser pattern uses colored optical materials and can display multiple colors.
[0058] Temperature indicator layer 6: Made of irreversible thermochromic material, it turns red below 0°C to indicate whether the medicine has been frozen.
[0059] Humidity indicator layer 7: Printed layer, using a colorless humidity indicator that turns light green when the relative humidity is above 75%.
[0060] Example of process flow: PET film is blended or co-extruded with safety fibers. UV fluorescent markings are printed. The RFID chip and protective film are then bonded together using a lamination process. Variable laser hot stamping is applied to the outside of the RFID area. Subsequently, irreversible thermochromic ink and humidity-indicating ink are printed on the label. Finally, die-cutting is performed.
[0061] Usage effect: Pharmaceutical packaging utilizes RFID chips for automated logistics management and anti-counterfeiting. Variable laser patterns provide an even higher level of anti-counterfeiting. Temperature indicator layer 6 (such as a freezing indicator) is crucial for certain freezing-sensitive medications. Humidity indicator layer 7 is used to indicate whether the product has become damp.
[0062] This invention provides a variable laser hot stamping label with five or more different functional layers (substrate layer 1, base adhesive layer 2, anti-counterfeiting layer 3, information traceability layer 4, variable laser hot stamping layer 5, temperature indicator layer 6, humidity indicator layer 7; the actual functional layers can be combined and up to five or more). The layers are connected by suitable adhesives or physical fixing methods, ensuring that the functions of each layer are not affected. It can simultaneously achieve advanced anti-counterfeiting, information traceability, customized dynamic pattern display, and environmental condition monitoring functions, effectively solving the problems of functional integration and mutual interference in existing technologies, and has broad application prospects.
[0063] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A variable laser hot stamping label, characterized in that, Includes the following layers: The substrate layer provides overall support and basic shape for the label; The primer layer, placed at the bottom of the substrate layer, is used to bond the product to the desired substrate. Anti-counterfeiting layer: Set on the substrate layer to provide anti-counterfeiting function for the label; The information traceability layer is set on top of the anti-counterfeiting layer. This layer contains a carrier for recording information such as the product's unique identifier, production batch, production date, QR code, and barcode. A variable laser hot stamping layer is set on the information traceability layer. This layer can print laser patterns with highly customized, dynamic and anti-counterfeiting characteristics according to preset instructions through variable laser hot stamping technology. The temperature indicator layer is set on the variable laser hot stamping layer and uses a color-changing material to change color according to changes in ambient temperature, indicating the storage or transportation temperature of the product. A humidity indicator layer is installed on the temperature indicator layer. This layer uses humidity-sensing material and can change its color or display status according to the ambient humidity to indicate the moisture status of the product. The layers are bonded together with an adhesive that has good adhesion and does not affect the function of each layer, or they are connected by physical fixing to ensure that each functional layer operates independently and that information transmission and display do not interfere with each other.
2. The variable laser hot stamping label according to claim 1, characterized in that: The substrate layer is made of polyester film, polypropylene film, polyvinyl chloride film, or paper.
3. The variable laser hot stamping label according to claim 1, characterized in that, The anti-counterfeiting features of the anti-counterfeiting layer include, but are not limited to: holographic images, microtext, engraved lines, invisible ink, color-changing ink, optically variable ink, security mesh, and embedded security fibers.
4. The variable laser hot stamping label according to claim 1, characterized in that, The information carriers of the information traceability layer are: variable data printing areas for printing QR codes, barcodes, and serial numbers; or embedded RFID electronic tags and NFC chips.