Integrated multifunctional high-performance heat-sensitive label

Abstract

The utility model discloses a kind of integrated multifunctional high-performance heat-sensitive labels, including substrate layer, heat-sensitive layer, anti-fake layer, temperature change layer, protective layer and adhesive layer, each layer is stacked in turn and mutually independent does not affect function realization.The label of the utility model integrates heat-sensitive printing, anti-fake verification, temperature indication and information encryption and the like multiple functions in one, through ingenious hierarchical design, the mutual independence and synergistic effect of each functional layer are ensured, the performance and application range of label are significantly improved, especially suitable for the high-end product packaging, medicine, food, cosmetics and the like field needing temperature record, traceability anti-fake and information security.

Description

Technical Field

[0001] This utility model relates to the field of anti-counterfeiting label technology, specifically an integrated multifunctional high-performance thermal label. Background Technology

[0002] With increasing awareness of product safety, traceability, and brand protection, traditional single-function labels can no longer meet the growing market demand. While existing label technologies can achieve thermal printing or certain anti-counterfeiting functions, they often require integrating multiple functions onto different labels, increasing production costs and application complexity. Furthermore, implementing multiple functions on a single label while ensuring that these functions do not interfere with each other remains a technical challenge. In particular, organically combining thermal printing, anti-counterfeiting, temperature indication, and information security functions into a sophisticated structure has significant application value.

[0003] Therefore, an integrated, multifunctional, high-performance thermal label is needed to meet market demand. Utility Model Content

[0004] Purpose of the utility model: To provide an integrated, multifunctional, high-performance thermal label that overcomes the shortcomings of existing technologies, such as single function, low integration, and interlayer interference. It can realize multiple functions such as thermal printing, various forms of anti-counterfeiting verification, and information encryption, and each functional layer is independent of each other and performs synergistically.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An integrated, multifunctional, high-performance thermal tag, comprising: The substrate layer provides overall structural support and a base for label adhesion; The thermal layer, located above the substrate layer, has the function of revealing or changing color when heated, and is used for thermal printing; The anti-counterfeiting layer is located above the thermal layer and has one or more anti-counterfeiting features. The thermochromic layer, located above the anti-counterfeiting layer, has the function of changing color or pattern according to changes in ambient temperature, and this thermochromic function is independent of the display mechanism of the thermal layer. The protective layer, located above the thermochromic layer, is designed to protect the underlying functional layers from wear, chemical corrosion, or ultraviolet damage. The adhesive layer, located below the substrate layer, is used to attach the label to the object being labeled.

[0006] As a further improvement to the above technical solution: The anti-counterfeiting layer includes, but is not limited to: Microtexture or pattern layer: has intricate textures or patterns that are difficult to see with the naked eye but can be observed with the aid of magnification equipment or specific light sources; Optical color-changing or holographic layer: displays different colors or patterns under different angles or lighting conditions; Fluorescent or phosphorescent layer: glows under specific light source illumination; Hidden information layer: Contains erasable or encrypted information that requires specific devices or methods to read.

[0007] The thermal layer is a coating containing microcapsule colorimetric agent and colorimetric agent.

[0008] The protective layer is a transparent polymer film.

[0009] Compared with the prior art, the beneficial effects of this utility model are: This product integrates multiple functions such as thermal printing, multi-layer anti-counterfeiting, temperature indication, and information encryption, reducing the number of label layers and overall thickness, simplifying production and application processes. Each functional layer is rationally designed, independent, and does not interfere with each other, while also working together to provide comprehensive product information and security. The multi-layered anti-counterfeiting design and information encryption function significantly improve the product's anti-counterfeiting and anti-counterfeiting capabilities, effectively combating counterfeit and substandard products. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 A schematic diagram of the structure for adding an information encryption layer to this utility model.

[0011] In the diagram: 1. Substrate layer; 2. Thermosensitive layer; 3. Anti-counterfeiting layer; 4. Temperature-changing layer; 5. Protective layer; 6. Adhesive layer; 7. Information encryption layer. Detailed Implementation

[0012] 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.

[0013] like Figure 1 As shown, this utility model provides an integrated multifunctional high-performance thermal label, comprising: Substrate layer 1: As the bottom support of the label, it is usually made of paper, plastic film (such as PET, BOPP) or other flexible materials, with good stiffness and a certain tensile strength to facilitate processing and pasting.

[0014] Thermal layer 2: Located above substrate layer 1. This layer is crucial for thermal printing. It typically consists of microcapsules encapsulating a developer and a colorant. When heat is applied by the thermal printhead, the microcapsules rupture, releasing the developer and causing a color change in a designated area, thus enabling the printing of text, images, and other information. The thermal layer 2 in this invention is heat-sensitive, compatible with commonly available printheads, and the underlying layers do not affect the clarity and durability of the print.

[0015] Anti-counterfeiting layer 3: Located above the thermal layer 2. The anti-counterfeiting layer 3 of this invention incorporates various optional anti-counterfeiting technologies to provide multi-layered security and ensure that its anti-counterfeiting features are not obscured or damaged by the layers above or below. Specific anti-counterfeiting features include, but are not limited to: Micro-texture or pattern layer: High-precision micro-textures, hidden patterns, or microtext are created on or inside the surface of anti-counterfeiting layer 3. These features are not easily detected by the naked eye, but can be identified and verified using a magnifying glass, microscope, or specialized decoding software, making them highly difficult to replicate.

[0016] Optical color-changing or holographic layer: By using optical materials (such as liquid crystal or electrochromic materials) or holographic technology, the anti-counterfeiting layer 3 can present changing colors, patterns or three-dimensional images under different viewing angles, lighting conditions or specific stimuli, providing a visual anti-counterfeiting effect.

[0017] Fluorescent or phosphorescent layer: An ink or coating containing fluorescent or phosphorescent materials is embedded in the anti-counterfeiting layer 3. This layer emits visible light when irradiated by a light source of a specific wavelength (such as an ultraviolet lamp), but is invisible when there is no special light source.

[0018] Hidden information layer: Contains pre-coded, invisible digital information (such as QR codes, serial numbers) or erasable physical markers that can only be read and verified by specific scanning devices or chemical reagents.

[0019] The material selection and structural design of the anti-counterfeiting layer 3 ensure that its optical, physical or chemical properties are not affected by the high temperature generated during the printing of the thermal layer 2, nor does it affect the thermal layer 2's response to heat.

[0020] Thermochromic layer 4: Located above anti-counterfeiting layer 3. This layer integrates a temperature indication function. It uses a special thermosensitive color-changing material. When the ambient temperature reaches a preset threshold, the material undergoes a reversible or irreversible color change, thus intuitively indicating the temperature change experienced by the product. For example, some materials are blue below a certain temperature and turn red above that temperature. The thermochromic layer 4 of this invention is designed independently of the color-changing mechanism of the thermosensitive layer 2, and its color-changing temperature and color change mode can be customized according to specific application scenarios. Importantly, the choice of material and structure of the thermochromic layer 4 ensures that its temperature sensitivity is not affected by the upper protective layer 5 or the lower anti-counterfeiting layer 3.

[0021] Protective Layer 5: Located above the thermochromic layer 4. This layer protects all underlying functional layers from physical wear, scratches, chemical corrosion (such as solvents, acids, and alkalis), UV aging, and accidental contamination. Protective Layer 5 is typically made of a transparent polymer film with high abrasion resistance, chemical corrosion resistance, and UV resistance, such as PET or PC. The optical transparency of Protective Layer 5 must be high enough not to affect the visibility of the color changes in the thermochromic layer 4 above, while also not significantly interfering with the signal transmission of thermal printing (if printing through Protective Layer 5 is required, even though thermal layer 2 is below in this design) or the optical reading of the anti-counterfeiting layer 3 (such as holography or fluorescence).

[0022] Adhesive layer 6: Located below substrate layer 1. This is crucial for label adhesion. It typically uses high-performance pressure-sensitive adhesive with excellent initial and final tack, ensuring firm adhesion to various labeled surfaces and providing good weather resistance, preventing detachment or failure.

[0023] Additional functional layers: like Figure 2 As shown, to further enhance the functionality of the label, this invention can also add an information encryption layer 7 between suitable layers. For example, a thin film with information storage and encryption functions can be introduced between the thermal layer 2 and the anti-counterfeiting layer 3, or between the anti-counterfeiting layer 3 and the thermochromic layer 4. This layer can store important product information, production batch, anti-counterfeiting keys, etc., through physical encoding (such as nanopatterns), chemical marking, or digital encryption algorithms. This information can only be read by specific reading devices or decoding software, or it can work in conjunction with the overall anti-counterfeiting system of the label to provide a higher level of information security and anti-counterfeiting functions.

[0024] Inter-layer independence guarantee: The core of this utility model design lies in ensuring the independence between each functional layer, that is: Thermal layer 2: Its ability to become visible when heated is not affected by the material properties of the underlying anti-counterfeiting layer 3, substrate layer 1, or adhesive layer 6. The high temperatures generated during printing will not cause unnecessary color changes or physical damage to the anti-counterfeiting layer 3, thermochromic layer 4, or other underlying layers.

[0025] Anti-counterfeiting layer 3: Its unique anti-counterfeiting features (texture, optical effect, fluorescence, etc.) can be effectively identified and verified, and are not limited by the heat during thermal printing, the color change that may occur in the temperature-sensitive layer 4, or the optical performance of the protective layer 5.

[0026] Thermochromic layer 4: Its temperature indication function is completely independent of the printing mechanism of the thermosensitive layer 2, and it can accurately reflect the ambient temperature. The performance of its color-changing material is not blocked by the upper protective layer 5, nor is it affected by the chemical or physical interference of the lower thermosensitive layer 2 or anti-counterfeiting layer 3.

[0027] Protective layer 5: Its protective function does not affect the clear observation of the color of the thermochromic layer 4 above, nor does it hinder the identification of necessary anti-counterfeiting features through the label (such as when it is necessary to observe through certain layers).

[0028] The manufacturing process of this utility model can be achieved through advanced roll-to-roll printing, coating, lamination, and precision machining technologies: 1. Coating and drying of the substrate.

[0029] 3. The formation of anti-counterfeiting layer 3 may involve the imprinting of micro-textures, the transfer of holographic patterns, and the printing of fluorescent inks.

[0030] 4. Uniform application and drying of the thermochromic coating.

[0031] 5. Composite of protective layer 5 thin film.

[0032] 6. Application of adhesive layer 6.

[0033] 7. As needed, a process of adding an information encryption layer 7 between specific layers.

[0034] Through precise process control, accurate alignment and firm bonding of each layer of material can be achieved, while maintaining the integrity of each layer's function. Specific Implementation

[0035] Substrate layer 1: 75gsm white PET film.

[0036] Thermal layer 2: Standard black printed thermal coating.

[0037] Anti-counterfeiting layer 3: A micro-engraved pattern layer located above the thermal layer 2, containing a brand logo and serial number that are invisible to the naked eye but can be magnified and identified, and is superimposed with an ink layer that emits a specific fluorescent color under ultraviolet light.

[0038] Temperature-changing layer 4: Located above anti-counterfeiting layer 3, it uses an irreversible color-changing material that changes from green to red at temperatures above 25°C, indicating whether the product has been stored at high temperatures.

[0039] Protective layer 5: A 12μm transparent PET film with a highly scratch-resistant coating on the surface.

[0040] Adhesive layer 6: Acrylic pressure-sensitive adhesive.

[0041] Information encryption layer 7: Between the anti-counterfeiting layer 3 and the thermochromic layer 4, a physical coding layer with an encrypted serial number is formed by nanoimprint technology.

[0042] Substrate layer 1: 120gsm food-grade paper.

[0043] Thermal layer 2: Water- and oil-resistant color printing thermal coating.

[0044] Anti-counterfeiting layer 3: A holographic pattern layer located above the thermal layer 2, which can change color and is printed with microtext.

[0045] Temperature-changing layer 4: Located above anti-counterfeiting layer 3, it uses reversible color-changing material. It remains blue at 0-4°C, turns purple at 4-10°C, and turns pink above 10°C, visually indicating the cold chain status.

[0046] Protective layer 5: A 20μm OPP film with good transparency and certain barrier properties.

[0047] Adhesive layer 6: Food-grade pressure-sensitive adhesive.

[0048] This invention provides an integrated, multifunctional, high-performance thermal label that is technologically advanced, fully functional, and highly practical. It can meet the multiple needs of modern products in terms of anti-counterfeiting, traceability, information recording, and temperature monitoring, and has broad market application prospects.

[0049] 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. An integrated, multifunctional, high-performance thermal label, characterized in that, include: The substrate layer provides overall structural support and a base for label adhesion; The thermal layer, located above the substrate layer, has the function of revealing or changing color when heated, and is used for thermal printing; The anti-counterfeiting layer is located above the thermal layer and has one or more anti-counterfeiting features. The thermochromic layer, located above the anti-counterfeiting layer, has the function of changing color or pattern according to changes in ambient temperature, and this thermochromic function is independent of the display mechanism of the thermal layer. The protective layer, located above the thermochromic layer, is designed to protect the underlying functional layers from abrasion, chemical corrosion, or UV damage. The adhesive layer, located below the substrate layer, is used to attach the label to the object being labeled.

2. The integrated multifunctional high-performance thermal label according to claim 1, characterized in that: The anti-counterfeiting layer includes: Microtexture or pattern layer: has intricate textures or patterns that are difficult to see with the naked eye but can be observed with the aid of magnification equipment or specific light sources; Optical color-changing or holographic layer: displays different colors or patterns under different angles or lighting conditions; Fluorescent or phosphorescent layer: glows under specific light source illumination; Hidden information layer: Contains erasable or encrypted information that requires specific devices or methods to read.

3. The integrated multifunctional high-performance thermal label according to claim 1, characterized in that: The thermally sensitive layer is a coating containing microcapsule colorimetric agent and colorimetric agent.

4. The integrated multifunctional high-performance thermal label according to claim 1, characterized in that, The protective layer is a transparent polymer film.

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