Outdoor uv-resistant adhesive label

Abstract

The utility model discloses an outdoor ultraviolet resistant adhesive label belongs to adhesive label technical field, including from below to above setting in proper order inner layer, middle layer and UV protection coating, and the inner layer includes base paper layer, glue layer, and the middle layer includes surface layer base material, ink layer, and surface layer base material is closely combined with ink layer, and ink layer sets up between surface layer base material, glue layer, and glue layer even coating is in base material back, and base paper layer sets up in glue layer lower surface, and UV protection coating sets up on surface layer base material upper surface. Through setting up UV protection coating, surface layer base material and pigment type UV curing ink's ink layer of UV stabilization treatment, formed multiple ultraviolet resistant barrier, can effectively resist the irradiation of ultraviolet, prevents the printing information from fading and material ageing.

Description

Technical Field

[0001] This utility model relates to the field of self-adhesive label technology, and in particular to an outdoor UV-resistant self-adhesive label. Background Technology

[0002] Self-adhesive labels are widely used for product labeling due to their ease of use and quick application. However, in outdoor environments, self-adhesive labels need to withstand direct sunlight. Ultraviolet radiation can cause problems such as fading of printed information, material aging, and loss of adhesiveness, severely impacting the label's lifespan and effectiveness. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an outdoor UV-resistant self-adhesive label. This label has excellent UV resistance, which can effectively prevent the printing information from fading, the material from aging and the adhesive from failing, while also having good weather resistance and stability in use.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An outdoor UV-resistant self-adhesive label includes an inner layer, a middle layer, and a UV protective coating arranged sequentially from bottom to top. The inner layer includes a backing paper layer and an adhesive layer. The middle layer includes a top substrate and an ink layer. The top substrate and the ink layer are tightly bonded together. The ink layer is disposed between the top substrate and the adhesive layer. The adhesive layer is uniformly coated on the back of the substrate. The backing paper layer is disposed on the lower surface of the adhesive layer. The UV protective coating is disposed on the upper surface of the top substrate.

[0006] Furthermore, the UV protective coating is a nano-titanium oxide coating, a zinc oxide coating, or a fluorocarbon coating, with a coating thickness of 1–3 μm.

[0007] Furthermore, the thickness of the surface substrate is 50-100 μm, wherein 0.1-0.5% of a benzotriazole ultraviolet absorber is added.

[0008] Furthermore, the ink layer is a pigment-based UV-curable ink with a thickness of 5–10 μm, and the pigment in the pigment-based UV-curable ink includes at least one of titanium dioxide, carbon black, and iron oxide red.

[0009] Furthermore, a glass fiber mesh of 100-200 mesh is added to the surface substrate.

[0010] Furthermore, the surface substrate comprises two layers of transparent PET, with the ink layer located between the two layers of transparent PET, forming a "sandwich structure" that provides double UV protection.

[0011] Furthermore, the outdoor UV-resistant self-adhesive label adopts a rounded corner design with a corner radius of ≥3mm.

[0012] Furthermore, the label has heat-sealed edges around its perimeter, the width of which is 1-2 mm, and the heat-sealed edges are sealed with EVA hot melt adhesive.

[0013] Compared to existing technologies, this utility model of an outdoor UV-resistant self-adhesive label includes an inner layer, a middle layer, and a UV protective coating arranged sequentially from bottom to top. The inner layer includes a backing paper layer and an adhesive layer; the middle layer includes a top substrate and an ink layer; the top substrate and the ink layer are tightly bonded; the ink layer is disposed between the top substrate and the adhesive layer; the adhesive layer is evenly coated on the back of the substrate; the backing paper layer is disposed on the lower surface of the adhesive layer; and the UV protective coating is disposed on the upper surface of the top substrate. This application, by setting a UV protective coating, a UV-stabilized top substrate, and an ink layer of pigment-based UV-curable ink, forms multiple UV-resistant barriers, effectively resisting UV radiation and preventing fading of printed information and material aging. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the outdoor UV-resistant self-adhesive label of this utility model;

[0015] Figure 2 for Figure 1 Another structural diagram of outdoor UV-resistant self-adhesive labels.

[0016] In the diagram: 10, Inner layer; 11, Backing paper layer; 12, Adhesive layer; 20, Middle layer; 21, Top layer substrate; 211, Transparent PET; 212, Fiberglass mesh; 22, Ink layer; 30, UV protective coating; 40, Rounded corners; 50, Heat-sealed edge. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Figures 1-2 This utility model is an outdoor UV-resistant self-adhesive label, which includes an inner layer 10, a middle layer 20 and a UV protective coating 30 arranged sequentially from bottom to top.

[0021] In this embodiment:

[0022] The inner layer 10 includes a backing paper layer 11 and an adhesive layer 12. The adhesive layer 12 is uniformly coated on the back of the substrate of the intermediate layer 20. The backing paper layer 11 is disposed on the lower surface of the adhesive layer 12, serving a covering and protective function. In this embodiment, the adhesive layer 12 uses a solvent-based acrylic pressure-sensitive adhesive with a thickness of 20-30 μm. 1-3% nano-silica is mixed into the solvent-based acrylic pressure-sensitive adhesive, which improves the weather resistance and UV aging resistance of the adhesive layer 12, ensuring the stability of the label's adhesion in complex outdoor environments and preventing the label from falling off. The backing paper layer 11 uses glassine release paper, and the surface of the glassine release paper is coated with a low-migration release agent, ensuring the stability of the label during storage and processing and avoiding the impact of release agent migration on the label's performance.

[0023] The intermediate layer 20 includes a surface substrate 21 and an ink layer 22. The surface substrate 21 and the ink layer 22 are tightly bonded together. The ink layer 22 is disposed between the surface substrate 21 and the adhesive layer 12. The ink layer 22 uses pigment-based UV-curable ink with a thickness of 5-10 μm. The pigment in the pigment-based UV-curable ink includes at least one of titanium dioxide, carbon black, and iron oxide red. The pigment particles in the pigment-based UV-curable ink have strong chemical stability and are not easily decomposed by ultraviolet light. After UV curing, it forms a dense protective layer that can effectively prevent the printed information from fading. In this embodiment, the ink layer 22 uses pigment-based UV-curable ink with a thickness of 8 μm, and the pigment in the pigment-based UV-curable ink is carbon black.

[0024] The surface substrate 21 has a thickness of 50–100 μm and contains 0.1–0.5% benzotriazole UV absorbers, which effectively resist UV radiation and reduce material aging. The addition of benzotriazole UV absorbers further enhances the UV resistance of the surface substrate 21. In this embodiment, the surface substrate 21 comprises two layers of transparent PET 211, with the ink layer 22 located between them, forming a "sandwich structure." This sandwich structure provides double UV protection, further protecting the ink layer 22 and preventing fading of printed information. In a preferred embodiment, a glass fiber mesh 212 of 100–200 mesh is incorporated into the surface substrate 21, enhancing the overall structural strength and weather resistance of the label and enabling it to withstand outdoor wind and sand friction, rain erosion, and wind pulling.

[0025] A UV protective coating 30 is applied to the upper surface of the surface substrate 21. The UV protective coating 30 is a nano-titanium oxide coating, a zinc oxide coating, or a fluorocarbon coating, and the coating thickness of the UV protective coating 30 is 1–3 μm. The nano-titanium oxide or zinc oxide coating can reflect and scatter ultraviolet rays, and also has a self-cleaning function, making it suitable for rainy and dusty outdoor environments.

[0026] Outdoor UV-resistant self-adhesive labels feature a 40° rounded corner design with a radius of ≥3mm. This reduces stress concentration at right angles and prevents edge cracking caused by prolonged UV exposure.

[0027] The label has heat-sealed edges 50 around its perimeter to prevent rainwater from seeping in and causing delamination, thus enhancing the label's weather resistance. In this embodiment, the heat-sealed edges 50 are 1.5 mm wide and are sealed with EVA hot melt adhesive.

[0028] This application forms a multi-layered UV barrier by setting a UV protective coating 30, a UV-stabilized surface substrate 21, and an ink layer 22 of pigment-based UV-curable ink, which can effectively resist UV radiation and prevent the printed information from fading and the material from aging.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An outdoor UV-resistant self-adhesive label, characterized in that: The material includes an inner layer (10), an intermediate layer (20), and a UV protective coating (30) arranged sequentially from bottom to top. The inner layer (10) includes a backing paper layer (11) and an adhesive layer (12). The intermediate layer (20) includes a top substrate (21) and an ink layer (22). The top substrate (21) and the ink layer (22) are tightly bonded together. The ink layer (22) is disposed between the top substrate (21) and the adhesive layer (12). The adhesive layer (12) is uniformly coated on the back of the substrate. The backing paper layer (11) is disposed on the lower surface of the adhesive layer (12). The UV protective coating (30) is disposed on the upper surface of the top substrate (21).

2. The outdoor UV-resistant self-adhesive label according to claim 1, characterized in that: The UV protective coating (30) is a nano-titanium oxide coating, zinc oxide coating, or fluorocarbon coating, with a coating thickness of 1 to 3 μm.

3. The outdoor UV-resistant self-adhesive label according to claim 1, characterized in that: The thickness of the surface substrate (21) is 50-100 μm, and 0.1-0.5% of benzotriazole ultraviolet absorber is added thereto.

4. The outdoor UV-resistant self-adhesive label according to claim 3, characterized in that: The ink layer (22) is a pigment-type UV-curable ink with a thickness of 5-10 μm. The pigment in the pigment-type UV-curable ink includes at least one of titanium dioxide, carbon black, and iron oxide red.

5. The outdoor UV-resistant self-adhesive label according to claim 3, characterized in that: A glass fiber mesh (212) is added to the surface substrate (21), wherein the glass fiber mesh (212) is 100 to 200 mesh.

6. The outdoor UV-resistant self-adhesive label according to claim 3, characterized in that: The surface substrate (21) comprises two layers of transparent PET (211), and the ink layer (22) is located between the two layers of transparent PET (211), forming a "sandwich structure" that provides double UV protection.

7. The outdoor UV-resistant self-adhesive label according to claim 1, characterized in that: The outdoor UV-resistant self-adhesive label adopts a rounded corner (40) design, and the radius of the rounded corner (40) is ≥3mm.

8. The outdoor UV-resistant self-adhesive label according to claim 1, characterized in that: The label is provided with a heat-sealing edge (50) around its perimeter. The width of the heat-sealing edge (50) is 1-2 mm. The heat-sealing edge (50) is sealed with EVA hot melt adhesive.

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