In-mold labeling label

Through multi-layer structural design, the problems of deformation and adhesive failure of in-mold labeling under high temperature and high pressure are solved, thereby improving the high temperature stability, fire resistance and mechanical strength of the label, and enhancing the overall structural stability and anti-counterfeiting capabilities of the label.

CN223757195UActive Publication Date: 2026-01-02WENZHOU JINCHI TECH CO LTD
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Patent Information

Application Number
CN202520114098.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-01-02
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Existing in-mold labeling is prone to deformation under high temperature and high pressure conditions, and the adhesive strength is damaged, causing the label to fall off. It also has poor resistance to high temperature and high pressure.

Method used

The membrane adopts a multi-layer structure design, including a substrate, an oil film layer, a protective layer, a toughening layer, an anti-counterfeiting layer, and a wear-resistant layer. It is equipped with a high-temperature resistant layer, a flame-retardant layer, glass fiber, carbon fiber, toughening agent, aluminum foil layer, etc., to improve the membrane's high-temperature resistance, flame retardancy, mechanical strength, and toughness.

Benefits of technology

Maintaining label stability in high-temperature environments prevents deformation and adhesive failure, improves overall structural stability and fire resistance, enhances mechanical strength and toughness, and increases anti-counterfeiting capabilities and durability.

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    Figure CN223757195U_ABST
Patent Text Reader

Abstract

The utility model relates to an in-mold labeling label, relates to label technical field, including base material, oil film layer, protective layer, toughening layer, anti-fake layer and wearing layer, oil film layer is provided on the base material, toughening layer is provided on oil film layer, protective layer includes first flame retardant layer, first high temperature resistant layer, second flame retardant layer and second high temperature resistant layer, anti-fake layer is provided on the first flame retardant layer, anti-fake layer is provided on the second flame retardant layer, anti-fake layer is provided on the second flame retardant layer, anti-fake layer is provided on the anti-fake layer. The first high-temperature-resistant layer is arranged at the end, away from the oil film layer, of the toughening layer, the first flame-retardant layer is arranged at the end, away from the toughening layer, of the first high-temperature-resistant layer, the second high-temperature-resistant layer is arranged at the end, away from the oil film layer, of the base material, and the second flame-retardant layer is arranged at the end, away from the base material, of the second high-temperature-resistant layer. The mechanical strength and toughness of the film can be improved through the protective layer and the toughening layer, so that the film is not easy to break or damage under the action of external force, and the overall structural stability of the film is further enhanced.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of labels, in particular to an in-mold labeling label. BACKGROUND

[0002] The in-mold labeling label is a label technology that combines a label with a product as a whole in the molding process of a plastic product. The technology places a printed label in a mold, uses the high temperature and high pressure of the mold to melt the special adhesive on the label and fuse it with the surface of the plastic product, and finally forms a label with exquisite printing effect.

[0003] At present, the Chinese utility model patent application with the publication number CN213025078U, published on April 20, 2021, provides an in-mold labeling label with radio frequency function, which comprises a substrate layer, a hot melt adhesive layer is arranged on the lower side of the substrate layer, a release paper layer is arranged on the lower side of the hot melt adhesive layer, a film layer is arranged on the upper side of the substrate layer, a pattern layer is printed on the upper side of the substrate layer, an annular sealing film layer is arranged on the upper side of the film layer, the sealing film layer is fixedly bonded with the edge portion of the film layer, an annular PET substrate is encapsulated between the sealing film layer and the film layer, an aluminum foil radio frequency antenna and a radio frequency chip are arranged between the PET substrate and the sealing film layer, the radio frequency antenna and the radio frequency chip are electrically connected, a cured resin layer is arranged on the sealing film layer, the cured resin layer is a cured resin layer containing flash gold particles, and a varnish layer is arranged on the inner side of the sealing film layer on the upper side of the film layer.

[0004] The radio frequency label in the related art has poor resistance to high temperature environment. High temperature can cause the label material to soften, thereby causing the label to deform. High temperature can damage the adhesion of the adhesive, causing the label to fall off. At the same time, the label may also exhibit instability in a high pressure environment. In a high pressure environment, the label material may be extruded, causing the label to break or fall off. In addition, temperature changes in a high pressure environment can also exacerbate the deformation of the label material and the failure of the adhesive.

[0005] Therefore, it is necessary to provide an in-mold labeling label to solve the above problems. Utility model content

[0006] The application provides an in-mold labeling label. In order to solve the technical problem that the in-mold labeling label in the related art deforms, damages the adhesion of the adhesive, and causes the label to fall off due to poor resistance to high temperature and high pressure conditions.

[0007] The embodiment of the present application provides a label in-mold labeling, which comprises a substrate, an oil film layer, a protective layer, a toughening layer, an anti-counterfeiting layer and a wear-resistant layer, the oil film layer is arranged on the substrate, the toughening layer is arranged on the oil film layer, the protective layer comprises a first flame-retardant layer, a first high-temperature-resistant layer, a second flame-retardant layer and a second high-temperature-resistant layer, the first high-temperature-resistant layer is arranged on one end of the toughening layer away from the oil film layer, the first flame-retardant layer is arranged on one end of the first high-temperature-resistant layer away from the toughening layer, the second high-temperature-resistant layer is arranged on one end of the substrate away from the oil film layer, the second flame-retardant layer is arranged on one end of the second high-temperature-resistant layer away from the substrate, the anti-counterfeiting layer is arranged on the protective layer, and the wear-resistant layer is arranged on the anti-counterfeiting layer.

[0008] The technical scheme described above in the embodiment of the present application has at least the following technical effects: the arrangement of the high-temperature-resistant layer can effectively improve the overall high-temperature-resistant performance of the film. This design enables the film to maintain stability in a high-temperature environment, preventing deformation, softening or damage caused by high temperature. The arrangement of the flame-retardant layer can significantly improve the flame-retardant performance of the film, preventing the occurrence or spread of fire. At the same time, the toughening layer is usually used to improve the mechanical strength and toughness of the film, so that it is not easy to break or be damaged when subjected to external force.

[0009] The label in-mold labeling provided by the embodiment of the present application can pass through the protective layer and the toughening layer, thereby reducing the problem that the label in-mold labeling is poor in high-temperature and high-pressure resistance, causing the label to deform, damage the adhesion of the adhesive and fall off, improving the mechanical strength and toughness of the film, so that it is not easy to break or be damaged when subjected to external force, and further enhancing the overall structural stability of the film.

[0010] In some embodiments, the toughening layer comprises a toughening agent, glass fibers and carbon fibers, the glass fibers are arranged on one end of the oil film layer away from the substrate, the carbon fibers are arranged on one end of the glass fibers away from the oil film layer, and the toughening agent is arranged on one end of the carbon fibers away from the glass fibers.

[0011] In some embodiments, the anti-counterfeiting layer comprises an adhesive layer, a hidden anti-counterfeiting layer, a temperature-changing oil film layer and an aluminum foil layer, the adhesive layer is arranged on one end of the first flame-retardant layer away from the first high-temperature-resistant layer, the hidden anti-counterfeiting layer is arranged in the adhesive layer, the temperature-changing oil film layer is arranged on one end of the hidden anti-counterfeiting layer away from the first flame-retardant layer, and the aluminum foil layer is arranged on one end of the adhesive layer away from the first flame-retardant layer.

[0012] In some embodiments, the wear-resistant layer comprises a thermoplastic rubber layer, a polyurea coating layer, a titanium nitride coating layer and a fluorocarbon coating layer, the fluorocarbon coating layer is arranged on one end of the aluminum foil layer away from the adhesive layer, the titanium nitride coating layer is arranged on one end of the fluorocarbon coating layer away from the aluminum foil layer, the polyurea coating layer is arranged on one end of the titanium nitride coating layer away from the fluorocarbon coating layer, and the thermoplastic rubber layer is arranged on one end of the polyurea coating layer away from the titanium nitride coating layer.

[0013] In some embodiments, the thermoplastic rubber layer is a convex structure arranged at intervals.

[0014] In some embodiments, the second fire-retardant layer is provided with a double-sided adhesive layer at one end away from the second high-temperature-resistant layer.

[0015] In some embodiments, the aluminum foil layer is provided with a waterproof layer at one end away from the adhesive layer. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 An exploded structural schematic diagram of the in-mold labeling label provided by the embodiments of the present application;

[0017] Fig. 2 An exploded structural schematic diagram of the toughening layer provided by the embodiments of the present application;

[0018] Fig. 3 An exploded structural schematic diagram of the wear-resistant layer provided by the embodiments of the present application;

[0019] Fig. 4 An exploded structural schematic diagram of the anti-counterfeiting layer provided by the embodiments of the present application;

[0020] In the drawings, various reference signs represent:

[0021] 1, base material; 2, oil film layer; 3, protective layer; 31, first fire-retardant layer; 32, first high-temperature-resistant layer; 33, second fire-retardant layer; 34, second high-temperature-resistant layer; 4, toughening layer; 41, toughening agent; 42, glass fiber; 43, carbon fiber; 5, wear-resistant layer; 51, thermoplastic rubber layer; 52, polyurea coating layer; 53, titanium nitride coating layer; 54, fluorocarbon coating layer; 6, anti-counterfeiting layer; 61, adhesive layer; 62, invisible anti-counterfeiting layer; 63, temperature-variable oil film layer; 64, aluminum foil layer; 7, double-sided adhesive layer; 8, waterproof layer. DETAILED DESCRIPTION

[0022] Therefore, in order to improve the technical problem that the in-mold labeling label in the related art deforms, the adhesion of the adhesive is destroyed, and the label falls off due to poor high-temperature and high-pressure resistance, the embodiments of the present application provide the following solutions.

[0023] Please refer to Figs. 1 to 4 The embodiments of the present application provide an in-mold labeling label, which comprises a base material 1, an oil film layer 2, a protective layer 3, a toughening layer 4, an anti-counterfeiting layer 6, and a wear-resistant layer 5. The oil film layer 2 is arranged on the base material 1, the toughening layer 4 is arranged on the oil film layer 2, the protective layer 3 is arranged on the toughening layer 4, the anti-counterfeiting layer 6 is arranged on the protective layer 3, and the wear-resistant layer 5 is arranged on the anti-counterfeiting layer 6.

[0024] In some embodiments, referring also to Figs. 1 to 2 , the protective layer 3 includes a first fire-retardant layer 31, a first high-temperature-resistant layer 32, a second fire-retardant layer 33, and a second high-temperature-resistant layer 34, the first high-temperature-resistant layer 32 is arranged on the end of the toughening layer 4 away from the oil film layer 2, the first fire-retardant layer 31 is arranged on the end of the first high-temperature-resistant layer 32 away from the toughening layer 4, the second high-temperature-resistant layer 34 is arranged on the end of the substrate 1 away from the oil film layer 2, the second fire-retardant layer 33 is arranged on the end of the second high-temperature-resistant layer 34 away from the substrate 1, the toughening layer 4 includes a toughening agent 41, glass fibers 42, and carbon fibers 43, the glass fibers 42 are arranged on the end of the oil film layer 2 away from the substrate 1, the carbon fibers 43 are arranged on the end of the glass fibers 42 away from the oil film layer 2, and the toughening agent 41 is arranged on the end of the carbon fibers 43 away from the glass fibers 42.

[0025] In this way, the arrangement of the high-temperature-resistant layer can effectively improve the overall high-temperature resistance of the film, and this design enables the film to maintain stability in a high-temperature environment, preventing deformation, softening, or damage caused by high temperatures. The arrangement of the fire-retardant layer can significantly improve the fire-retardant performance of the film, preventing the occurrence or spread of fire. The glass fibers 42 arranged on the end of the oil film layer 2 away from the substrate 1 can significantly improve the mechanical strength and rigidity of the film. The glass fibers 42 have high strength and high modulus, effectively enhancing the tensile strength and impact resistance of the material. The carbon fibers 43 arranged on the end of the glass fibers 42 away from the oil film layer 2 further enhance the mechanical properties of the film. The carbon fibers 43 have high strength, low density, and excellent fatigue resistance, providing better tensile strength and compressive strength. The toughening agent 41 arranged on the end of the carbon fibers 43 away from the glass fibers 42 is used to improve the toughness and impact resistance of the film. The toughening agent 41 can absorb and disperse stress, preventing crack propagation and thus improving the overall toughness of the material. This structural design not only improves the single performance of the film, such as high-temperature resistance, fire retardancy, mechanical strength, and toughness, but also achieves an improvement in comprehensive performance through the synergistic effect of the layers and components. The combination of the high-temperature-resistant layer and the fire-retardant layer can provide better fire protection in a high-temperature environment. The combination of the glass fibers 42 and the carbon fibers 43 can provide higher mechanical strength and impact resistance.

[0026] In some embodiments, referring also to Figs. 1 to 4The anti-counterfeiting layer 6 includes an adhesive layer 61, a hidden anti-counterfeiting layer 62, a temperature-changing oil film layer 63, and an aluminum foil layer 64. The adhesive layer 61 is arranged on the end of the first flame-retardant layer 31 away from the first high-temperature-resistant layer 32. The hidden anti-counterfeiting layer 62 is arranged in the adhesive layer 61. The temperature-changing oil film layer 63 is arranged on the end of the hidden anti-counterfeiting layer 62 away from the first flame-retardant layer 31. The aluminum foil layer 64 is arranged on the end of the adhesive layer 61 away from the first flame-retardant layer 31. The end of the aluminum foil layer 64 away from the adhesive layer 61 is provided with a waterproof layer 8.

[0027] With such an arrangement, the hidden anti-counterfeiting layer 62 provides an unobtrusive anti-counterfeiting means, making counterfeiting more difficult. This anti-counterfeiting technology usually requires special equipment or methods to detect, increasing the security of the product. The temperature-changing oil film layer 63 can change color according to temperature changes, providing an intuitive anti-counterfeiting method. Consumers can verify the authenticity of the product by observing the color change, increasing the anti-counterfeiting capability of the product. The aluminum foil layer 64 not only provides additional physical protection but also serves as part of the anti-counterfeiting. The unique texture and reflective properties of aluminum foil make counterfeiting more difficult. The adhesive layer 61 is arranged on the end of the first flame-retardant layer 31 away from the first high-temperature-resistant layer 32, effectively enhancing the adhesion between the layers. This design ensures that the layers do not easily separate when subjected to external forces, improving the stability of the overall structure. The waterproof layer 8 is arranged on the end of the aluminum foil layer 64 away from the adhesive layer 61, effectively preventing moisture penetration and protecting the internal structure from moisture damage. This design is particularly important in humid environments and can significantly improve the durability of the film. This multi-layer structure design not only provides anti-counterfeiting functions but also achieves multiple protections through the synergistic effect of each layer. The adhesive layer 61 enhances the adhesion between the layers, the aluminum foil layer 64 provides physical protection, and the waterproof layer 8 prevents moisture penetration. By combining anti-counterfeiting technology and multiple protection measures, this structural design not only improves the security of the product but also increases the added value of the product. Consumers can purchase the product with greater confidence, and the market competitiveness of the product is also improved.

[0028] In some embodiments, please refer to Figs. 1 to 3 The wear-resistant layer 5 includes a thermoplastic rubber layer 51, a polyurea coating layer 52, a titanium nitride coating layer 53, and a fluorocarbon coating layer 54. The fluorocarbon coating layer 54 is arranged on the end of the aluminum foil layer 64 away from the adhesive layer 61. The titanium nitride coating layer 53 is arranged on the end of the fluorocarbon coating layer 54 away from the aluminum foil layer 64. The polyurea coating layer 52 is arranged on the end of the titanium nitride coating layer 53 away from the fluorocarbon coating layer 54. The thermoplastic rubber layer 51 is arranged on the end of the polyurea coating layer 52 away from the titanium nitride coating layer 53. The thermoplastic rubber layer 51 is a convex structure arranged at intervals. The second flame-retardant layer 33 is provided with a double-sided adhesive layer 7 on the end away from the second high-temperature-resistant layer 34.

[0029] With such an arrangement, the fluorocarbon coating layer 54 has excellent weather resistance, chemical corrosion resistance, and wear resistance, effectively resisting ultraviolet light, chemicals, and mechanical wear. This design allows the film to maintain good appearance and function in various harsh environments. The titanium nitride coating layer 53 has extremely high hardness and wear resistance, providing additional mechanical protection. This coating is commonly used in applications such as knives and molds that require high wear resistance, significantly improving the film's wear resistance. The polyurea coating layer 52 has excellent wear resistance, impact resistance, and chemical corrosion resistance, providing protection in various extreme environments. This coating is widely used in industrial and construction fields, effectively extending the film's service life. The thermoplastic rubber layer 51 has excellent elasticity and wear resistance, absorbing and dispersing external forces to reduce wear and damage. This design allows the film to maintain good performance when subjected to impact and friction. The thermoplastic rubber layer 51 is arranged as a convex structure with intervals, further enhancing wear resistance. This structure design increases contact area, disperses pressure, reduces friction and wear, and provides better grip and slip resistance, suitable for applications requiring high friction. The double-sided adhesive layer 7 is arranged on the end of the second flame-retardant layer 33 away from the second high-temperature-resistant layer 34, effectively enhancing the film's adhesion to other materials. This design ensures that the film does not easily fall off during installation and use, improving overall stability and reliability. This multi-layer structure design not only provides wear resistance but also achieves multiple protection through the synergistic effect of each layer. The fluorocarbon coating layer 54 and the titanium nitride coating layer 53 provide high wear resistance, the polyurea coating layer 52 provides impact resistance and chemical corrosion resistance, and the thermoplastic rubber layer 51 provides elasticity and slip resistance.

[0030] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An in-mould label, characterised in that: The application relates to a multilayer composite material, which comprises a substrate (1), an oil film layer (2), a protective layer (3), a toughening layer (4), an anti-fake layer (6) and a wear-resistant layer (5), wherein the oil film layer (2) is arranged on the substrate (1), the toughening layer (4) is arranged on the oil film layer (2), the protective layer (3) comprises a first fireproof layer (31), a first high-temperature-resistant layer (32), a second fireproof layer (33) and a second high-temperature-resistant layer (34), the first high-temperature-resistant layer (32) is arranged on one end of the toughening layer (4) away from the oil film layer (2), the first fireproof layer (31) is arranged on one end of the first high-temperature-resistant layer (32) away from the toughening layer (4), the second high-temperature-resistant layer (34) is arranged on one end of the substrate (1) away from the oil film layer (2), the second fireproof layer (33) is arranged on one end of the second high-temperature-resistant layer (34) away from the substrate (1), the anti-fake layer (6) is arranged on the protective layer (3), and the wear-resistant layer (5) is arranged on the anti-fake layer (6).

2. An in-mould label according to claim 1, characterised in that: The toughening layer (4) comprises a toughening agent (41), glass fibers (42) and carbon fibers (43), the glass fibers (42) are arranged on one end of the oil film layer (2) away from the substrate (1), the carbon fibers (43) are arranged on one end of the glass fibers (42) away from the oil film layer (2), and the toughening agent (41) is arranged on one end of the carbon fibers (43) away from the glass fibers (42).

3. An in-mould label according to claim 2, characterised in that: The anti-fake layer (6) comprises a bonding layer (61), a hidden anti-fake layer (62), a temperature-variable oil film layer (63) and an aluminum foil layer (64), the bonding layer (61) is arranged on one end of the first fireproof layer (31) away from the first high-temperature-resistant layer (32), the hidden anti-fake layer (62) is arranged in the bonding layer (61), the temperature-variable oil film layer (63) is arranged on one end of the hidden anti-fake layer (62) away from the first fireproof layer (31), and the aluminum foil layer (64) is arranged on one end of the bonding layer (61) away from the first fireproof layer (31).

4. An in-mould label according to claim 3, characterised in that: The wear-resistant layer (5) comprises a thermoplastic rubber layer (51), a polyurea coating layer (52), a titanium nitride coating layer (53) and a fluorocarbon coating layer (54), the fluorocarbon coating layer (54) is arranged on one end of the aluminum foil layer (64) away from the bonding layer (61), the titanium nitride coating layer (53) is arranged on one end of the fluorocarbon coating layer (54) away from the aluminum foil layer (64), the polyurea coating layer (52) is arranged on one end of the titanium nitride coating layer (53) away from the fluorocarbon coating layer (54), and the thermoplastic rubber layer (51) is arranged on one end of the polyurea coating layer (52) away from the titanium nitride coating layer (53).

5. An in-mould label according to claim 4, characterised in that: The thermoplastic rubber layer (51) is a convex structure arranged at intervals.

6. An in-mould label according to claim 5, characterised in that: One end of the second fireproof layer (33) away from the second high-temperature-resistant layer (34) is provided with a double-sided adhesive layer (7).

7. An in-mould label according to claim 6, characterised in that: One end of the aluminum foil layer (64) away from the bonding layer (61) is provided with a waterproof layer (8).

Citation Information

Patent Citations

  • In-film label with radio frequency function

    CN213025078U